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ClickHouse/contrib/libfarmhash/farmhash.cc

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Decreased warning threshold [#MOBMET-3248]
2016-06-07 08:23:15 +00:00
// Copyright (c) 2014 Google, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
// FarmHash, by Geoff Pike
#include "farmhash.h"
// FARMHASH ASSUMPTIONS: Modify as needed, or use -DFARMHASH_ASSUME_SSE42 etc.
// Note that if you use -DFARMHASH_ASSUME_SSE42 you likely need -msse42
// (or its equivalent for your compiler); if you use -DFARMHASH_ASSUME_AESNI
// you likely need -maes (or its equivalent for your compiler).
#ifdef FARMHASH_ASSUME_SSSE3
#undef FARMHASH_ASSUME_SSSE3
#define FARMHASH_ASSUME_SSSE3 1
#endif
#ifdef FARMHASH_ASSUME_SSE41
#undef FARMHASH_ASSUME_SSE41
#define FARMHASH_ASSUME_SSE41 1
#endif
#ifdef FARMHASH_ASSUME_SSE42
#undef FARMHASH_ASSUME_SSE42
#define FARMHASH_ASSUME_SSE42 1
#endif
#ifdef FARMHASH_ASSUME_AESNI
#undef FARMHASH_ASSUME_AESNI
#define FARMHASH_ASSUME_AESNI 1
#endif
#ifdef FARMHASH_ASSUME_AVX
#undef FARMHASH_ASSUME_AVX
#define FARMHASH_ASSUME_AVX 1
#endif
#if !defined(FARMHASH_CAN_USE_CXX11) && defined(LANG_CXX11)
#define FARMHASH_CAN_USE_CXX11 1
#else
#undef FARMHASH_CAN_USE_CXX11
#define FARMHASH_CAN_USE_CXX11 0
#endif
// FARMHASH PORTABILITY LAYER: Runtime error if misconfigured
#ifndef FARMHASH_DIE_IF_MISCONFIGURED
#define FARMHASH_DIE_IF_MISCONFIGURED do { *(char*)(len % 17) = 0; } while (0)
#endif
// FARMHASH PORTABILITY LAYER: "static inline" or similar
#ifndef STATIC_INLINE
#define STATIC_INLINE static inline
#endif
// FARMHASH PORTABILITY LAYER: LIKELY and UNLIKELY
#if !defined(LIKELY)
#if defined(FARMHASH_NO_BUILTIN_EXPECT) || (defined(FARMHASH_OPTIONAL_BUILTIN_EXPECT) && !defined(HAVE_BUILTIN_EXPECT))
#define LIKELY(x) (x)
#else
#define LIKELY(x) (__builtin_expect(!!(x), 1))
#endif
#endif
#undef UNLIKELY
#define UNLIKELY(x) !LIKELY(!(x))
// FARMHASH PORTABILITY LAYER: endianness and byteswapping functions
#ifdef WORDS_BIGENDIAN
#undef FARMHASH_BIG_ENDIAN
#define FARMHASH_BIG_ENDIAN 1
#endif
#if defined(FARMHASH_LITTLE_ENDIAN) && defined(FARMHASH_BIG_ENDIAN)
#error
#endif
#if !defined(FARMHASH_LITTLE_ENDIAN) && !defined(FARMHASH_BIG_ENDIAN)
#define FARMHASH_UNKNOWN_ENDIAN 1
#endif
#if !defined(bswap_32) || !defined(bswap_64)
#undef bswap_32
#undef bswap_64
#if defined(HAVE_BUILTIN_BSWAP) || defined(__clang__) || \
(defined(__GNUC__) && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 8) || \
__GNUC__ >= 5))
// Easy case for bswap: no header file needed.
#define bswap_32(x) __builtin_bswap32(x)
#define bswap_64(x) __builtin_bswap64(x)
#endif
#endif
#if defined(FARMHASH_UNKNOWN_ENDIAN) || !defined(bswap_64)
#ifdef _MSC_VER
#undef bswap_32
#undef bswap_64
#define bswap_32(x) _byteswap_ulong(x)
#define bswap_64(x) _byteswap_uint64(x)
#elif defined(__APPLE__)
// Mac OS X / Darwin features
#include <libkern/OSByteOrder.h>
#undef bswap_32
#undef bswap_64
#define bswap_32(x) OSSwapInt32(x)
#define bswap_64(x) OSSwapInt64(x)
#elif defined(__sun) || defined(sun)
#include <sys/byteorder.h>
#undef bswap_32
#undef bswap_64
#define bswap_32(x) BSWAP_32(x)
#define bswap_64(x) BSWAP_64(x)
#elif defined(__FreeBSD__)
#include <sys/endian.h>
#undef bswap_32
#undef bswap_64
#define bswap_32(x) bswap32(x)
#define bswap_64(x) bswap64(x)
#elif defined(__OpenBSD__)
#include <sys/types.h>
#undef bswap_32
#undef bswap_64
#define bswap_32(x) swap32(x)
#define bswap_64(x) swap64(x)
#elif defined(__NetBSD__)
#include <sys/types.h>
#include <machine/bswap.h>
#if defined(__BSWAP_RENAME) && !defined(__bswap_32)
#undef bswap_32
#undef bswap_64
#define bswap_32(x) bswap32(x)
#define bswap_64(x) bswap64(x)
#endif
#else
#undef bswap_32
#undef bswap_64
#include <byteswap.h>
#endif
#ifdef WORDS_BIGENDIAN
#define FARMHASH_BIG_ENDIAN 1
#endif
#endif
#ifdef FARMHASH_BIG_ENDIAN
#define uint32_in_expected_order(x) (bswap_32(x))
#define uint64_in_expected_order(x) (bswap_64(x))
#else
#define uint32_in_expected_order(x) (x)
#define uint64_in_expected_order(x) (x)
#endif
namespace NAMESPACE_FOR_HASH_FUNCTIONS {
STATIC_INLINE uint64_t Fetch64(const char *p) {
uint64_t result;
memcpy(&result, p, sizeof(result));
return uint64_in_expected_order(result);
}
STATIC_INLINE uint32_t Fetch32(const char *p) {
uint32_t result;
memcpy(&result, p, sizeof(result));
return uint32_in_expected_order(result);
}
STATIC_INLINE uint32_t Bswap32(uint32_t val) { return bswap_32(val); }
STATIC_INLINE uint64_t Bswap64(uint64_t val) { return bswap_64(val); }
// FARMHASH PORTABILITY LAYER: bitwise rot
STATIC_INLINE uint32_t BasicRotate32(uint32_t val, int shift) {
// Avoid shifting by 32: doing so yields an undefined result.
return shift == 0 ? val : ((val >> shift) | (val << (32 - shift)));
}
STATIC_INLINE uint64_t BasicRotate64(uint64_t val, int shift) {
// Avoid shifting by 64: doing so yields an undefined result.
return shift == 0 ? val : ((val >> shift) | (val << (64 - shift)));
}
#if defined(_MSC_VER) && defined(FARMHASH_ROTR)
STATIC_INLINE uint32_t Rotate32(uint32_t val, int shift) {
return sizeof(unsigned long) == sizeof(val) ?
_lrotr(val, shift) :
BasicRotate32(val, shift);
}
STATIC_INLINE uint64_t Rotate64(uint64_t val, int shift) {
return sizeof(unsigned long) == sizeof(val) ?
_lrotr(val, shift) :
BasicRotate64(val, shift);
}
#else
STATIC_INLINE uint32_t Rotate32(uint32_t val, int shift) {
return BasicRotate32(val, shift);
}
STATIC_INLINE uint64_t Rotate64(uint64_t val, int shift) {
return BasicRotate64(val, shift);
}
#endif
} // namespace NAMESPACE_FOR_HASH_FUNCTIONS
// FARMHASH PORTABILITY LAYER: debug mode or max speed?
// One may use -DFARMHASH_DEBUG=1 or -DFARMHASH_DEBUG=0 to force the issue.
#if !defined(FARMHASH_DEBUG) && (!defined(NDEBUG) || defined(_DEBUG))
#define FARMHASH_DEBUG 1
#endif
#undef debug_mode
#if FARMHASH_DEBUG
#define debug_mode 1
#else
#define debug_mode 0
#endif
// PLATFORM-SPECIFIC FUNCTIONS AND MACROS
#undef x86_64
#if defined (__x86_64) || defined (__x86_64__)
#define x86_64 1
#else
#define x86_64 0
#endif
#undef x86
#if defined(__i386__) || defined(__i386) || defined(__X86__)
#define x86 1
#else
#define x86 x86_64
#endif
#if !defined(is_64bit)
#define is_64bit (x86_64 || (sizeof(void*) == 8))
#endif
#undef can_use_ssse3
#if defined(__SSSE3__) || defined(FARMHASH_ASSUME_SSSE3)
#include <immintrin.h>
#define can_use_ssse3 1
// Now we can use _mm_hsub_epi16 and so on.
#else
#define can_use_ssse3 0
#endif
#undef can_use_sse41
#if defined(__SSE4_1__) || defined(FARMHASH_ASSUME_SSE41)
#include <immintrin.h>
#define can_use_sse41 1
// Now we can use _mm_insert_epi64 and so on.
#else
#define can_use_sse41 0
#endif
#undef can_use_sse42
#if defined(__SSE4_2__) || defined(FARMHASH_ASSUME_SSE42)
#include <nmmintrin.h>
#define can_use_sse42 1
// Now we can use _mm_crc32_u{32,16,8}. And on 64-bit platforms, _mm_crc32_u64.
#else
#define can_use_sse42 0
#endif
#undef can_use_aesni
#if defined(__AES__) || defined(FARMHASH_ASSUME_AESNI)
#include <wmmintrin.h>
#define can_use_aesni 1
// Now we can use _mm_aesimc_si128 and so on.
#else
#define can_use_aesni 0
#endif
#undef can_use_avx
#if defined(__AVX__) || defined(FARMHASH_ASSUME_AVX)
#include <immintrin.h>
#define can_use_avx 1
#else
#define can_use_avx 0
#endif
#if can_use_ssse3 || can_use_sse41 || can_use_sse42 || can_use_aesni || can_use_avx
STATIC_INLINE __m128i Fetch128(const char* s) {
return _mm_loadu_si128(reinterpret_cast<const __m128i*>(s));
}
#endif
// Building blocks for hash functions
// std::swap() was in <algorithm> but is in <utility> from C++11 on.
#if !FARMHASH_CAN_USE_CXX11
#include <algorithm>
#endif
#undef PERMUTE3
#define PERMUTE3(a, b, c) do { std::swap(a, b); std::swap(a, c); } while (0)
namespace NAMESPACE_FOR_HASH_FUNCTIONS {
// Some primes between 2^63 and 2^64 for various uses.
static const uint64_t k0 = 0xc3a5c85c97cb3127ULL;
static const uint64_t k1 = 0xb492b66fbe98f273ULL;
static const uint64_t k2 = 0x9ae16a3b2f90404fULL;
// Magic numbers for 32-bit hashing. Copied from Murmur3.
static const uint32_t c1 = 0xcc9e2d51;
static const uint32_t c2 = 0x1b873593;
// A 32-bit to 32-bit integer hash copied from Murmur3.
STATIC_INLINE uint32_t fmix(uint32_t h)
{
h ^= h >> 16;
h *= 0x85ebca6b;
h ^= h >> 13;
h *= 0xc2b2ae35;
h ^= h >> 16;
return h;
}
STATIC_INLINE uint32_t Mur(uint32_t a, uint32_t h) {
// Helper from Murmur3 for combining two 32-bit values.
a *= c1;
a = Rotate32(a, 17);
a *= c2;
h ^= a;
h = Rotate32(h, 19);
return h * 5 + 0xe6546b64;
}
template <typename T> STATIC_INLINE T DebugTweak(T x) {
if (debug_mode) {
if (sizeof(x) == 4) {
x = ~Bswap32(x * c1);
} else {
x = ~Bswap64(x * k1);
}
}
return x;
}
template <> uint128_t DebugTweak(uint128_t x) {
if (debug_mode) {
uint64_t y = DebugTweak(Uint128Low64(x));
uint64_t z = DebugTweak(Uint128High64(x));
y += z;
z += y;
x = Uint128(y, z * k1);
}
return x;
}
} // namespace NAMESPACE_FOR_HASH_FUNCTIONS
using namespace std;
using namespace NAMESPACE_FOR_HASH_FUNCTIONS;
namespace farmhashna {
#undef Fetch
#define Fetch Fetch64
#undef Rotate
#define Rotate Rotate64
#undef Bswap
#define Bswap Bswap64
STATIC_INLINE uint64_t ShiftMix(uint64_t val) {
return val ^ (val >> 47);
}
STATIC_INLINE uint64_t HashLen16(uint64_t u, uint64_t v) {
return Hash128to64(Uint128(u, v));
}
STATIC_INLINE uint64_t HashLen16(uint64_t u, uint64_t v, uint64_t mul) {
// Murmur-inspired hashing.
uint64_t a = (u ^ v) * mul;
a ^= (a >> 47);
uint64_t b = (v ^ a) * mul;
b ^= (b >> 47);
b *= mul;
return b;
}
STATIC_INLINE uint64_t HashLen0to16(const char *s, size_t len) {
if (len >= 8) {
uint64_t mul = k2 + len * 2;
uint64_t a = Fetch(s) + k2;
uint64_t b = Fetch(s + len - 8);
uint64_t c = Rotate(b, 37) * mul + a;
uint64_t d = (Rotate(a, 25) + b) * mul;
return HashLen16(c, d, mul);
}
if (len >= 4) {
uint64_t mul = k2 + len * 2;
uint64_t a = Fetch32(s);
return HashLen16(len + (a << 3), Fetch32(s + len - 4), mul);
}
if (len > 0) {
uint8_t a = s[0];
uint8_t b = s[len >> 1];
uint8_t c = s[len - 1];
uint32_t y = static_cast<uint32_t>(a) + (static_cast<uint32_t>(b) << 8);
uint32_t z = len + (static_cast<uint32_t>(c) << 2);
return ShiftMix(y * k2 ^ z * k0) * k2;
}
return k2;
}
// This probably works well for 16-byte strings as well, but it may be overkill
// in that case.
STATIC_INLINE uint64_t HashLen17to32(const char *s, size_t len) {
uint64_t mul = k2 + len * 2;
uint64_t a = Fetch(s) * k1;
uint64_t b = Fetch(s + 8);
uint64_t c = Fetch(s + len - 8) * mul;
uint64_t d = Fetch(s + len - 16) * k2;
return HashLen16(Rotate(a + b, 43) + Rotate(c, 30) + d,
a + Rotate(b + k2, 18) + c, mul);
}
// Return a 16-byte hash for 48 bytes. Quick and dirty.
// Callers do best to use "random-looking" values for a and b.
STATIC_INLINE pair<uint64_t, uint64_t> WeakHashLen32WithSeeds(
uint64_t w, uint64_t x, uint64_t y, uint64_t z, uint64_t a, uint64_t b) {
a += w;
b = Rotate(b + a + z, 21);
uint64_t c = a;
a += x;
a += y;
b += Rotate(a, 44);
return make_pair(a + z, b + c);
}
// Return a 16-byte hash for s[0] ... s[31], a, and b. Quick and dirty.
STATIC_INLINE pair<uint64_t, uint64_t> WeakHashLen32WithSeeds(
const char* s, uint64_t a, uint64_t b) {
return WeakHashLen32WithSeeds(Fetch(s),
Fetch(s + 8),
Fetch(s + 16),
Fetch(s + 24),
a,
b);
}
// Return an 8-byte hash for 33 to 64 bytes.
STATIC_INLINE uint64_t HashLen33to64(const char *s, size_t len) {
uint64_t mul = k2 + len * 2;
uint64_t a = Fetch(s) * k2;
uint64_t b = Fetch(s + 8);
uint64_t c = Fetch(s + len - 8) * mul;
uint64_t d = Fetch(s + len - 16) * k2;
uint64_t y = Rotate(a + b, 43) + Rotate(c, 30) + d;
uint64_t z = HashLen16(y, a + Rotate(b + k2, 18) + c, mul);
uint64_t e = Fetch(s + 16) * mul;
uint64_t f = Fetch(s + 24);
uint64_t g = (y + Fetch(s + len - 32)) * mul;
uint64_t h = (z + Fetch(s + len - 24)) * mul;
return HashLen16(Rotate(e + f, 43) + Rotate(g, 30) + h,
e + Rotate(f + a, 18) + g, mul);
}
uint64_t Hash64(const char *s, size_t len) {
const uint64_t seed = 81;
if (len <= 32) {
if (len <= 16) {
return HashLen0to16(s, len);
} else {
return HashLen17to32(s, len);
}
} else if (len <= 64) {
return HashLen33to64(s, len);
}
// For strings over 64 bytes we loop. Internal state consists of
// 56 bytes: v, w, x, y, and z.
uint64_t x = seed;
uint64_t y = seed * k1 + 113;
uint64_t z = ShiftMix(y * k2 + 113) * k2;
pair<uint64_t, uint64_t> v = make_pair(0, 0);
pair<uint64_t, uint64_t> w = make_pair(0, 0);
x = x * k2 + Fetch(s);
// Set end so that after the loop we have 1 to 64 bytes left to process.
const char* end = s + ((len - 1) / 64) * 64;
const char* last64 = end + ((len - 1) & 63) - 63;
assert(s + len - 64 == last64);
do {
x = Rotate(x + y + v.first + Fetch(s + 8), 37) * k1;
y = Rotate(y + v.second + Fetch(s + 48), 42) * k1;
x ^= w.second;
y += v.first + Fetch(s + 40);
z = Rotate(z + w.first, 33) * k1;
v = WeakHashLen32WithSeeds(s, v.second * k1, x + w.first);
w = WeakHashLen32WithSeeds(s + 32, z + w.second, y + Fetch(s + 16));
std::swap(z, x);
s += 64;
} while (s != end);
uint64_t mul = k1 + ((z & 0xff) << 1);
// Make s point to the last 64 bytes of input.
s = last64;
w.first += ((len - 1) & 63);
v.first += w.first;
w.first += v.first;
x = Rotate(x + y + v.first + Fetch(s + 8), 37) * mul;
y = Rotate(y + v.second + Fetch(s + 48), 42) * mul;
x ^= w.second * 9;
y += v.first * 9 + Fetch(s + 40);
z = Rotate(z + w.first, 33) * mul;
v = WeakHashLen32WithSeeds(s, v.second * mul, x + w.first);
w = WeakHashLen32WithSeeds(s + 32, z + w.second, y + Fetch(s + 16));
std::swap(z, x);
return HashLen16(HashLen16(v.first, w.first, mul) + ShiftMix(y) * k0 + z,
HashLen16(v.second, w.second, mul) + x,
mul);
}
uint64_t Hash64WithSeeds(const char *s, size_t len, uint64_t seed0, uint64_t seed1);
uint64_t Hash64WithSeed(const char *s, size_t len, uint64_t seed) {
return Hash64WithSeeds(s, len, k2, seed);
}
uint64_t Hash64WithSeeds(const char *s, size_t len, uint64_t seed0, uint64_t seed1) {
return HashLen16(Hash64(s, len) - seed0, seed1);
}
} // namespace farmhashna
namespace farmhashuo {
#undef Fetch
#define Fetch Fetch64
#undef Rotate
#define Rotate Rotate64
STATIC_INLINE uint64_t H(uint64_t x, uint64_t y, uint64_t mul, int r) {
uint64_t a = (x ^ y) * mul;
a ^= (a >> 47);
uint64_t b = (y ^ a) * mul;
return Rotate(b, r) * mul;
}
uint64_t Hash64WithSeeds(const char *s, size_t len,
uint64_t seed0, uint64_t seed1) {
if (len <= 64) {
return farmhashna::Hash64WithSeeds(s, len, seed0, seed1);
}
// For strings over 64 bytes we loop. Internal state consists of
// 64 bytes: u, v, w, x, y, and z.
uint64_t x = seed0;
uint64_t y = seed1 * k2 + 113;
uint64_t z = farmhashna::ShiftMix(y * k2) * k2;
pair<uint64_t, uint64_t> v = make_pair(seed0, seed1);
pair<uint64_t, uint64_t> w = make_pair(0, 0);
uint64_t u = x - z;
x *= k2;
uint64_t mul = k2 + (u & 0x82);
// Set end so that after the loop we have 1 to 64 bytes left to process.
const char* end = s + ((len - 1) / 64) * 64;
const char* last64 = end + ((len - 1) & 63) - 63;
assert(s + len - 64 == last64);
do {
uint64_t a0 = Fetch(s);
uint64_t a1 = Fetch(s + 8);
uint64_t a2 = Fetch(s + 16);
uint64_t a3 = Fetch(s + 24);
uint64_t a4 = Fetch(s + 32);
uint64_t a5 = Fetch(s + 40);
uint64_t a6 = Fetch(s + 48);
uint64_t a7 = Fetch(s + 56);
x += a0 + a1;
y += a2;
z += a3;
v.first += a4;
v.second += a5 + a1;
w.first += a6;
w.second += a7;
x = Rotate(x, 26);
x *= 9;
y = Rotate(y, 29);
z *= mul;
v.first = Rotate(v.first, 33);
v.second = Rotate(v.second, 30);
w.first ^= x;
w.first *= 9;
z = Rotate(z, 32);
z += w.second;
w.second += z;
z *= 9;
std::swap(u, y);
z += a0 + a6;
v.first += a2;
v.second += a3;
w.first += a4;
w.second += a5 + a6;
x += a1;
y += a7;
y += v.first;
v.first += x - y;
v.second += w.first;
w.first += v.second;
w.second += x - y;
x += w.second;
w.second = Rotate(w.second, 34);
std::swap(u, z);
s += 64;
} while (s != end);
// Make s point to the last 64 bytes of input.
s = last64;
u *= 9;
v.second = Rotate(v.second, 28);
v.first = Rotate(v.first, 20);
w.first += ((len - 1) & 63);
u += y;
y += u;
x = Rotate(y - x + v.first + Fetch(s + 8), 37) * mul;
y = Rotate(y ^ v.second ^ Fetch(s + 48), 42) * mul;
x ^= w.second * 9;
y += v.first + Fetch(s + 40);
z = Rotate(z + w.first, 33) * mul;
v = farmhashna::WeakHashLen32WithSeeds(s, v.second * mul, x + w.first);
w = farmhashna::WeakHashLen32WithSeeds(s + 32, z + w.second, y + Fetch(s + 16));
return H(farmhashna::HashLen16(v.first + x, w.first ^ y, mul) + z - u,
H(v.second + y, w.second + z, k2, 30) ^ x,
k2,
31);
}
uint64_t Hash64WithSeed(const char *s, size_t len, uint64_t seed) {
return len <= 64 ? farmhashna::Hash64WithSeed(s, len, seed) :
Hash64WithSeeds(s, len, 0, seed);
}
uint64_t Hash64(const char *s, size_t len) {
return len <= 64 ? farmhashna::Hash64(s, len) :
Hash64WithSeeds(s, len, 81, 0);
}
} // namespace farmhashuo
namespace farmhashxo {
#undef Fetch
#define Fetch Fetch64
#undef Rotate
#define Rotate Rotate64
STATIC_INLINE uint64_t H32(const char *s, size_t len, uint64_t mul,
uint64_t seed0 = 0, uint64_t seed1 = 0) {
uint64_t a = Fetch(s) * k1;
uint64_t b = Fetch(s + 8);
uint64_t c = Fetch(s + len - 8) * mul;
uint64_t d = Fetch(s + len - 16) * k2;
uint64_t u = Rotate(a + b, 43) + Rotate(c, 30) + d + seed0;
uint64_t v = a + Rotate(b + k2, 18) + c + seed1;
a = farmhashna::ShiftMix((u ^ v) * mul);
b = farmhashna::ShiftMix((v ^ a) * mul);
return b;
}
// Return an 8-byte hash for 33 to 64 bytes.
STATIC_INLINE uint64_t HashLen33to64(const char *s, size_t len) {
uint64_t mul0 = k2 - 30;
uint64_t mul1 = k2 - 30 + 2 * len;
uint64_t h0 = H32(s, 32, mul0);
uint64_t h1 = H32(s + len - 32, 32, mul1);
return ((h1 * mul1) + h0) * mul1;
}
// Return an 8-byte hash for 65 to 96 bytes.
STATIC_INLINE uint64_t HashLen65to96(const char *s, size_t len) {
uint64_t mul0 = k2 - 114;
uint64_t mul1 = k2 - 114 + 2 * len;
uint64_t h0 = H32(s, 32, mul0);
uint64_t h1 = H32(s + 32, 32, mul1);
uint64_t h2 = H32(s + len - 32, 32, mul1, h0, h1);
return (h2 * 9 + (h0 >> 17) + (h1 >> 21)) * mul1;
}
uint64_t Hash64(const char *s, size_t len) {
if (len <= 32) {
if (len <= 16) {
return farmhashna::HashLen0to16(s, len);
} else {
return farmhashna::HashLen17to32(s, len);
}
} else if (len <= 64) {
return HashLen33to64(s, len);
} else if (len <= 96) {
return HashLen65to96(s, len);
} else if (len <= 256) {
return farmhashna::Hash64(s, len);
} else {
return farmhashuo::Hash64(s, len);
}
}
uint64_t Hash64WithSeeds(const char *s, size_t len, uint64_t seed0, uint64_t seed1) {
return farmhashuo::Hash64WithSeeds(s, len, seed0, seed1);
}
uint64_t Hash64WithSeed(const char *s, size_t len, uint64_t seed) {
return farmhashuo::Hash64WithSeed(s, len, seed);
}
} // namespace farmhashxo
namespace farmhashte {
#if !can_use_sse41 || !x86_64
uint64_t Hash64(const char *s, size_t len) {
FARMHASH_DIE_IF_MISCONFIGURED;
return s == NULL ? 0 : len;
}
uint64_t Hash64WithSeed(const char *s, size_t len, uint64_t seed) {
FARMHASH_DIE_IF_MISCONFIGURED;
return seed + Hash64(s, len);
}
uint64_t Hash64WithSeeds(const char *s, size_t len,
uint64_t seed0, uint64_t seed1) {
FARMHASH_DIE_IF_MISCONFIGURED;
return seed0 + seed1 + Hash64(s, len);
}
#else
#undef Fetch
#define Fetch Fetch64
#undef Rotate
#define Rotate Rotate64
#undef Bswap
#define Bswap Bswap64
// Helpers for data-parallel operations (1x 128 bits or 2x 64 or 4x 32).
STATIC_INLINE __m128i Add(__m128i x, __m128i y) { return _mm_add_epi64(x, y); }
STATIC_INLINE __m128i Xor(__m128i x, __m128i y) { return _mm_xor_si128(x, y); }
STATIC_INLINE __m128i Mul(__m128i x, __m128i y) { return _mm_mullo_epi32(x, y); }
STATIC_INLINE __m128i Shuf(__m128i x, __m128i y) { return _mm_shuffle_epi8(y, x); }
// Requires n >= 256. Requires SSE4.1. Should be slightly faster if the
// compiler uses AVX instructions (e.g., use the -mavx flag with GCC).
STATIC_INLINE uint64_t Hash64Long(const char* s, size_t n,
uint64_t seed0, uint64_t seed1) {
const __m128i kShuf =
_mm_set_epi8(4, 11, 10, 5, 8, 15, 6, 9, 12, 2, 14, 13, 0, 7, 3, 1);
const __m128i kMult =
_mm_set_epi8(0xbd, 0xd6, 0x33, 0x39, 0x45, 0x54, 0xfa, 0x03,
0x34, 0x3e, 0x33, 0xed, 0xcc, 0x9e, 0x2d, 0x51);
uint64_t seed2 = (seed0 + 113) * (seed1 + 9);
uint64_t seed3 = (Rotate(seed0, 23) + 27) * (Rotate(seed1, 30) + 111);
__m128i d0 = _mm_cvtsi64_si128(seed0);
__m128i d1 = _mm_cvtsi64_si128(seed1);
__m128i d2 = Shuf(kShuf, d0);
__m128i d3 = Shuf(kShuf, d1);
__m128i d4 = Xor(d0, d1);
__m128i d5 = Xor(d1, d2);
__m128i d6 = Xor(d2, d4);
__m128i d7 = _mm_set1_epi32(seed2 >> 32);
__m128i d8 = Mul(kMult, d2);
__m128i d9 = _mm_set1_epi32(seed3 >> 32);
__m128i d10 = _mm_set1_epi32(seed3);
__m128i d11 = Add(d2, _mm_set1_epi32(seed2));
const char* end = s + (n & ~static_cast<size_t>(255));
do {
__m128i z;
z = Fetch128(s);
d0 = Add(d0, z);
d1 = Shuf(kShuf, d1);
d2 = Xor(d2, d0);
d4 = Xor(d4, z);
d4 = Xor(d4, d1);
std::swap(d0, d6);
z = Fetch128(s + 16);
d5 = Add(d5, z);
d6 = Shuf(kShuf, d6);
d8 = Shuf(kShuf, d8);
d7 = Xor(d7, d5);
d0 = Xor(d0, z);
d0 = Xor(d0, d6);
std::swap(d5, d11);
z = Fetch128(s + 32);
d1 = Add(d1, z);
d2 = Shuf(kShuf, d2);
d4 = Shuf(kShuf, d4);
d5 = Xor(d5, z);
d5 = Xor(d5, d2);
std::swap(d10, d4);
z = Fetch128(s + 48);
d6 = Add(d6, z);
d7 = Shuf(kShuf, d7);
d0 = Shuf(kShuf, d0);
d8 = Xor(d8, d6);
d1 = Xor(d1, z);
d1 = Add(d1, d7);
z = Fetch128(s + 64);
d2 = Add(d2, z);
d5 = Shuf(kShuf, d5);
d4 = Add(d4, d2);
d6 = Xor(d6, z);
d6 = Xor(d6, d11);
std::swap(d8, d2);
z = Fetch128(s + 80);
d7 = Xor(d7, z);
d8 = Shuf(kShuf, d8);
d1 = Shuf(kShuf, d1);
d0 = Add(d0, d7);
d2 = Add(d2, z);
d2 = Add(d2, d8);
std::swap(d1, d7);
z = Fetch128(s + 96);
d4 = Shuf(kShuf, d4);
d6 = Shuf(kShuf, d6);
d8 = Mul(kMult, d8);
d5 = Xor(d5, d11);
d7 = Xor(d7, z);
d7 = Add(d7, d4);
std::swap(d6, d0);
z = Fetch128(s + 112);
d8 = Add(d8, z);
d0 = Shuf(kShuf, d0);
d2 = Shuf(kShuf, d2);
d1 = Xor(d1, d8);
d10 = Xor(d10, z);
d10 = Xor(d10, d0);
std::swap(d11, d5);
z = Fetch128(s + 128);
d4 = Add(d4, z);
d5 = Shuf(kShuf, d5);
d7 = Shuf(kShuf, d7);
d6 = Add(d6, d4);
d8 = Xor(d8, z);
d8 = Xor(d8, d5);
std::swap(d4, d10);
z = Fetch128(s + 144);
d0 = Add(d0, z);
d1 = Shuf(kShuf, d1);
d2 = Add(d2, d0);
d4 = Xor(d4, z);
d4 = Xor(d4, d1);
z = Fetch128(s + 160);
d5 = Add(d5, z);
d6 = Shuf(kShuf, d6);
d8 = Shuf(kShuf, d8);
d7 = Xor(d7, d5);
d0 = Xor(d0, z);
d0 = Xor(d0, d6);
std::swap(d2, d8);
z = Fetch128(s + 176);
d1 = Add(d1, z);
d2 = Shuf(kShuf, d2);
d4 = Shuf(kShuf, d4);
d5 = Mul(kMult, d5);
d5 = Xor(d5, z);
d5 = Xor(d5, d2);
std::swap(d7, d1);
z = Fetch128(s + 192);
d6 = Add(d6, z);
d7 = Shuf(kShuf, d7);
d0 = Shuf(kShuf, d0);
d8 = Add(d8, d6);
d1 = Xor(d1, z);
d1 = Xor(d1, d7);
std::swap(d0, d6);
z = Fetch128(s + 208);
d2 = Add(d2, z);
d5 = Shuf(kShuf, d5);
d4 = Xor(d4, d2);
d6 = Xor(d6, z);
d6 = Xor(d6, d9);
std::swap(d5, d11);
z = Fetch128(s + 224);
d7 = Add(d7, z);
d8 = Shuf(kShuf, d8);
d1 = Shuf(kShuf, d1);
d0 = Xor(d0, d7);
d2 = Xor(d2, z);
d2 = Xor(d2, d8);
std::swap(d10, d4);
z = Fetch128(s + 240);
d3 = Add(d3, z);
d4 = Shuf(kShuf, d4);
d6 = Shuf(kShuf, d6);
d7 = Mul(kMult, d7);
d5 = Add(d5, d3);
d7 = Xor(d7, z);
d7 = Xor(d7, d4);
std::swap(d3, d9);
s += 256;
} while (s != end);
d6 = Add(Mul(kMult, d6), _mm_cvtsi64_si128(n));
if (n % 256 != 0) {
d7 = Add(_mm_shuffle_epi32(d8, (0 << 6) + (3 << 4) + (2 << 2) + (1 << 0)), d7);
d8 = Add(Mul(kMult, d8), _mm_cvtsi64_si128(farmhashxo::Hash64(s, n % 256)));
}
__m128i t[8];
d0 = Mul(kMult, Shuf(kShuf, Mul(kMult, d0)));
d3 = Mul(kMult, Shuf(kShuf, Mul(kMult, d3)));
d9 = Mul(kMult, Shuf(kShuf, Mul(kMult, d9)));
d1 = Mul(kMult, Shuf(kShuf, Mul(kMult, d1)));
d0 = Add(d11, d0);
d3 = Xor(d7, d3);
d9 = Add(d8, d9);
d1 = Add(d10, d1);
d4 = Add(d3, d4);
d5 = Add(d9, d5);
d6 = Xor(d1, d6);
d2 = Add(d0, d2);
t[0] = d0;
t[1] = d3;
t[2] = d9;
t[3] = d1;
t[4] = d4;
t[5] = d5;
t[6] = d6;
t[7] = d2;
return farmhashxo::Hash64(reinterpret_cast<const char*>(t), sizeof(t));
}
uint64_t Hash64(const char *s, size_t len) {
// Empirically, farmhashxo seems faster until length 512.
return len >= 512 ? Hash64Long(s, len, k2, k1) : farmhashxo::Hash64(s, len);
}
uint64_t Hash64WithSeed(const char *s, size_t len, uint64_t seed) {
return len >= 512 ? Hash64Long(s, len, k1, seed) :
farmhashxo::Hash64WithSeed(s, len, seed);
}
uint64_t Hash64WithSeeds(const char *s, size_t len, uint64_t seed0, uint64_t seed1) {
return len >= 512 ? Hash64Long(s, len, seed0, seed1) :
farmhashxo::Hash64WithSeeds(s, len, seed0, seed1);
}
#endif
} // namespace farmhashte
namespace farmhashnt {
#if !can_use_sse41 || !x86_64
uint32_t Hash32(const char *s, size_t len) {
FARMHASH_DIE_IF_MISCONFIGURED;
return s == NULL ? 0 : len;
}
uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) {
FARMHASH_DIE_IF_MISCONFIGURED;
return seed + Hash32(s, len);
}
#else
uint32_t Hash32(const char *s, size_t len) {
return static_cast<uint32_t>(farmhashte::Hash64(s, len));
}
uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) {
return static_cast<uint32_t>(farmhashte::Hash64WithSeed(s, len, seed));
}
#endif
} // namespace farmhashnt
namespace farmhashmk {
#undef Fetch
#define Fetch Fetch32
#undef Rotate
#define Rotate Rotate32
#undef Bswap
#define Bswap Bswap32
STATIC_INLINE uint32_t Hash32Len13to24(const char *s, size_t len, uint32_t seed = 0) {
uint32_t a = Fetch(s - 4 + (len >> 1));
uint32_t b = Fetch(s + 4);
uint32_t c = Fetch(s + len - 8);
uint32_t d = Fetch(s + (len >> 1));
uint32_t e = Fetch(s);
uint32_t f = Fetch(s + len - 4);
uint32_t h = d * c1 + len + seed;
a = Rotate(a, 12) + f;
h = Mur(c, h) + a;
a = Rotate(a, 3) + c;
h = Mur(e, h) + a;
a = Rotate(a + f, 12) + d;
h = Mur(b ^ seed, h) + a;
return fmix(h);
}
STATIC_INLINE uint32_t Hash32Len0to4(const char *s, size_t len, uint32_t seed = 0) {
uint32_t b = seed;
uint32_t c = 9;
for (size_t i = 0; i < len; i++) {
signed char v = s[i];
b = b * c1 + v;
c ^= b;
}
return fmix(Mur(b, Mur(len, c)));
}
STATIC_INLINE uint32_t Hash32Len5to12(const char *s, size_t len, uint32_t seed = 0) {
uint32_t a = len, b = len * 5, c = 9, d = b + seed;
a += Fetch(s);
b += Fetch(s + len - 4);
c += Fetch(s + ((len >> 1) & 4));
return fmix(seed ^ Mur(c, Mur(b, Mur(a, d))));
}
uint32_t Hash32(const char *s, size_t len) {
if (len <= 24) {
return len <= 12 ?
(len <= 4 ? Hash32Len0to4(s, len) : Hash32Len5to12(s, len)) :
Hash32Len13to24(s, len);
}
// len > 24
uint32_t h = len, g = c1 * len, f = g;
uint32_t a0 = Rotate(Fetch(s + len - 4) * c1, 17) * c2;
uint32_t a1 = Rotate(Fetch(s + len - 8) * c1, 17) * c2;
uint32_t a2 = Rotate(Fetch(s + len - 16) * c1, 17) * c2;
uint32_t a3 = Rotate(Fetch(s + len - 12) * c1, 17) * c2;
uint32_t a4 = Rotate(Fetch(s + len - 20) * c1, 17) * c2;
h ^= a0;
h = Rotate(h, 19);
h = h * 5 + 0xe6546b64;
h ^= a2;
h = Rotate(h, 19);
h = h * 5 + 0xe6546b64;
g ^= a1;
g = Rotate(g, 19);
g = g * 5 + 0xe6546b64;
g ^= a3;
g = Rotate(g, 19);
g = g * 5 + 0xe6546b64;
f += a4;
f = Rotate(f, 19) + 113;
size_t iters = (len - 1) / 20;
do {
uint32_t a = Fetch(s);
uint32_t b = Fetch(s + 4);
uint32_t c = Fetch(s + 8);
uint32_t d = Fetch(s + 12);
uint32_t e = Fetch(s + 16);
h += a;
g += b;
f += c;
h = Mur(d, h) + e;
g = Mur(c, g) + a;
f = Mur(b + e * c1, f) + d;
f += g;
g += f;
s += 20;
} while (--iters != 0);
g = Rotate(g, 11) * c1;
g = Rotate(g, 17) * c1;
f = Rotate(f, 11) * c1;
f = Rotate(f, 17) * c1;
h = Rotate(h + g, 19);
h = h * 5 + 0xe6546b64;
h = Rotate(h, 17) * c1;
h = Rotate(h + f, 19);
h = h * 5 + 0xe6546b64;
h = Rotate(h, 17) * c1;
return h;
}
uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) {
if (len <= 24) {
if (len >= 13) return Hash32Len13to24(s, len, seed * c1);
else if (len >= 5) return Hash32Len5to12(s, len, seed);
else return Hash32Len0to4(s, len, seed);
}
uint32_t h = Hash32Len13to24(s, 24, seed ^ len);
return Mur(Hash32(s + 24, len - 24) + seed, h);
}
} // namespace farmhashmk
namespace farmhashsu {
#if !can_use_sse42 || !can_use_aesni
uint32_t Hash32(const char *s, size_t len) {
FARMHASH_DIE_IF_MISCONFIGURED;
return s == NULL ? 0 : len;
}
uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) {
FARMHASH_DIE_IF_MISCONFIGURED;
return seed + Hash32(s, len);
}
#else
#undef Fetch
#define Fetch Fetch32
#undef Rotate
#define Rotate Rotate32
#undef Bswap
#define Bswap Bswap32
// Helpers for data-parallel operations (4x 32-bits).
STATIC_INLINE __m128i Add(__m128i x, __m128i y) { return _mm_add_epi32(x, y); }
STATIC_INLINE __m128i Xor(__m128i x, __m128i y) { return _mm_xor_si128(x, y); }
STATIC_INLINE __m128i Or(__m128i x, __m128i y) { return _mm_or_si128(x, y); }
STATIC_INLINE __m128i Mul(__m128i x, __m128i y) { return _mm_mullo_epi32(x, y); }
STATIC_INLINE __m128i Mul5(__m128i x) { return Add(x, _mm_slli_epi32(x, 2)); }
STATIC_INLINE __m128i RotateLeft(__m128i x, int c) {
return Or(_mm_slli_epi32(x, c),
_mm_srli_epi32(x, 32 - c));
}
STATIC_INLINE __m128i Rol17(__m128i x) { return RotateLeft(x, 17); }
STATIC_INLINE __m128i Rol19(__m128i x) { return RotateLeft(x, 19); }
STATIC_INLINE __m128i Shuffle0321(__m128i x) {
return _mm_shuffle_epi32(x, (0 << 6) + (3 << 4) + (2 << 2) + (1 << 0));
}
uint32_t Hash32(const char *s, size_t len) {
const uint32_t seed = 81;
if (len <= 24) {
return len <= 12 ?
(len <= 4 ?
farmhashmk::Hash32Len0to4(s, len) :
farmhashmk::Hash32Len5to12(s, len)) :
farmhashmk::Hash32Len13to24(s, len);
}
if (len < 40) {
uint32_t a = len, b = seed * c2, c = a + b;
a += Fetch(s + len - 4);
b += Fetch(s + len - 20);
c += Fetch(s + len - 16);
uint32_t d = a;
a = NAMESPACE_FOR_HASH_FUNCTIONS::Rotate32(a, 21);
a = Mur(a, Mur(b, _mm_crc32_u32(c, d)));
a += Fetch(s + len - 12);
b += Fetch(s + len - 8);
d += a;
a += d;
b = Mur(b, d) * c2;
a = _mm_crc32_u32(a, b + c);
return farmhashmk::Hash32Len13to24(s, (len + 1) / 2, a) + b;
}
#undef Mulc1
#define Mulc1(x) Mul((x), cc1)
#undef Mulc2
#define Mulc2(x) Mul((x), cc2)
#undef Murk
#define Murk(a, h) \
Add(k, \
Mul5( \
Rol19( \
Xor( \
Mulc2( \
Rol17( \
Mulc1(a))), \
(h)))))
const __m128i cc1 = _mm_set1_epi32(c1);
const __m128i cc2 = _mm_set1_epi32(c2);
__m128i h = _mm_set1_epi32(seed);
__m128i g = _mm_set1_epi32(c1 * seed);
__m128i f = g;
__m128i k = _mm_set1_epi32(0xe6546b64);
__m128i q;
if (len < 80) {
__m128i a = Fetch128(s);
__m128i b = Fetch128(s + 16);
__m128i c = Fetch128(s + (len - 15) / 2);
__m128i d = Fetch128(s + len - 32);
__m128i e = Fetch128(s + len - 16);
h = Add(h, a);
g = Add(g, b);
q = g;
g = Shuffle0321(g);
f = Add(f, c);
__m128i be = Add(b, Mulc1(e));
h = Add(h, f);
f = Add(f, h);
h = Add(Murk(d, h), e);
k = Xor(k, _mm_shuffle_epi8(g, f));
g = Add(Xor(c, g), a);
f = Add(Xor(be, f), d);
k = Add(k, be);
k = Add(k, _mm_shuffle_epi8(f, h));
f = Add(f, g);
g = Add(g, f);
g = Add(_mm_set1_epi32(len), Mulc1(g));
} else {
// len >= 80
// The following is loosely modelled after farmhashmk::Hash32.
size_t iters = (len - 1) / 80;
len -= iters * 80;
#undef Chunk
#define Chunk() do { \
__m128i a = Fetch128(s); \
__m128i b = Fetch128(s + 16); \
__m128i c = Fetch128(s + 32); \
__m128i d = Fetch128(s + 48); \
__m128i e = Fetch128(s + 64); \
h = Add(h, a); \
g = Add(g, b); \
g = Shuffle0321(g); \
f = Add(f, c); \
__m128i be = Add(b, Mulc1(e)); \
h = Add(h, f); \
f = Add(f, h); \
h = Add(h, d); \
q = Add(q, e); \
h = Rol17(h); \
h = Mulc1(h); \
k = Xor(k, _mm_shuffle_epi8(g, f)); \
g = Add(Xor(c, g), a); \
f = Add(Xor(be, f), d); \
std::swap(f, q); \
q = _mm_aesimc_si128(q); \
k = Add(k, be); \
k = Add(k, _mm_shuffle_epi8(f, h)); \
f = Add(f, g); \
g = Add(g, f); \
f = Mulc1(f); \
} while (0)
q = g;
while (iters-- != 0) {
Chunk();
s += 80;
}
if (len != 0) {
h = Add(h, _mm_set1_epi32(len));
s = s + len - 80;
Chunk();
}
}
g = Shuffle0321(g);
k = Xor(k, g);
k = Xor(k, q);
h = Xor(h, q);
f = Mulc1(f);
k = Mulc2(k);
g = Mulc1(g);
h = Mulc2(h);
k = Add(k, _mm_shuffle_epi8(g, f));
h = Add(h, f);
f = Add(f, h);
g = Add(g, k);
k = Add(k, g);
k = Xor(k, _mm_shuffle_epi8(f, h));
__m128i buf[4];
buf[0] = f;
buf[1] = g;
buf[2] = k;
buf[3] = h;
s = reinterpret_cast<char*>(buf);
uint32_t x = Fetch(s);
uint32_t y = Fetch(s+4);
uint32_t z = Fetch(s+8);
x = _mm_crc32_u32(x, Fetch(s+12));
y = _mm_crc32_u32(y, Fetch(s+16));
z = _mm_crc32_u32(z * c1, Fetch(s+20));
x = _mm_crc32_u32(x, Fetch(s+24));
y = _mm_crc32_u32(y * c1, Fetch(s+28));
uint32_t o = y;
z = _mm_crc32_u32(z, Fetch(s+32));
x = _mm_crc32_u32(x * c1, Fetch(s+36));
y = _mm_crc32_u32(y, Fetch(s+40));
z = _mm_crc32_u32(z * c1, Fetch(s+44));
x = _mm_crc32_u32(x, Fetch(s+48));
y = _mm_crc32_u32(y * c1, Fetch(s+52));
z = _mm_crc32_u32(z, Fetch(s+56));
x = _mm_crc32_u32(x, Fetch(s+60));
return (o - x + y - z) * c1;
}
#undef Chunk
#undef Murk
#undef Mulc2
#undef Mulc1
uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) {
if (len <= 24) {
if (len >= 13) return farmhashmk::Hash32Len13to24(s, len, seed * c1);
else if (len >= 5) return farmhashmk::Hash32Len5to12(s, len, seed);
else return farmhashmk::Hash32Len0to4(s, len, seed);
}
uint32_t h = farmhashmk::Hash32Len13to24(s, 24, seed ^ len);
return _mm_crc32_u32(Hash32(s + 24, len - 24) + seed, h);
}
#endif
} // namespace farmhashsu
namespace farmhashsa {
#if !can_use_sse42
uint32_t Hash32(const char *s, size_t len) {
FARMHASH_DIE_IF_MISCONFIGURED;
return s == NULL ? 0 : len;
}
uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) {
FARMHASH_DIE_IF_MISCONFIGURED;
return seed + Hash32(s, len);
}
#else
#undef Fetch
#define Fetch Fetch32
#undef Rotate
#define Rotate Rotate32
#undef Bswap
#define Bswap Bswap32
// Helpers for data-parallel operations (4x 32-bits).
STATIC_INLINE __m128i Add(__m128i x, __m128i y) { return _mm_add_epi32(x, y); }
STATIC_INLINE __m128i Xor(__m128i x, __m128i y) { return _mm_xor_si128(x, y); }
STATIC_INLINE __m128i Or(__m128i x, __m128i y) { return _mm_or_si128(x, y); }
STATIC_INLINE __m128i Mul(__m128i x, __m128i y) { return _mm_mullo_epi32(x, y); }
STATIC_INLINE __m128i Mul5(__m128i x) { return Add(x, _mm_slli_epi32(x, 2)); }
STATIC_INLINE __m128i Rotate(__m128i x, int c) {
return Or(_mm_slli_epi32(x, c),
_mm_srli_epi32(x, 32 - c));
}
STATIC_INLINE __m128i Rot17(__m128i x) { return Rotate(x, 17); }
STATIC_INLINE __m128i Rot19(__m128i x) { return Rotate(x, 19); }
STATIC_INLINE __m128i Shuffle0321(__m128i x) {
return _mm_shuffle_epi32(x, (0 << 6) + (3 << 4) + (2 << 2) + (1 << 0));
}
uint32_t Hash32(const char *s, size_t len) {
const uint32_t seed = 81;
if (len <= 24) {
return len <= 12 ?
(len <= 4 ?
farmhashmk::Hash32Len0to4(s, len) :
farmhashmk::Hash32Len5to12(s, len)) :
farmhashmk::Hash32Len13to24(s, len);
}
if (len < 40) {
uint32_t a = len, b = seed * c2, c = a + b;
a += Fetch(s + len - 4);
b += Fetch(s + len - 20);
c += Fetch(s + len - 16);
uint32_t d = a;
a = NAMESPACE_FOR_HASH_FUNCTIONS::Rotate32(a, 21);
a = Mur(a, Mur(b, Mur(c, d)));
a += Fetch(s + len - 12);
b += Fetch(s + len - 8);
d += a;
a += d;
b = Mur(b, d) * c2;
a = _mm_crc32_u32(a, b + c);
return farmhashmk::Hash32Len13to24(s, (len + 1) / 2, a) + b;
}
#undef Mulc1
#define Mulc1(x) Mul((x), cc1)
#undef Mulc2
#define Mulc2(x) Mul((x), cc2)
#undef Murk
#define Murk(a, h) \
Add(k, \
Mul5( \
Rot19( \
Xor( \
Mulc2( \
Rot17( \
Mulc1(a))), \
(h)))))
const __m128i cc1 = _mm_set1_epi32(c1);
const __m128i cc2 = _mm_set1_epi32(c2);
__m128i h = _mm_set1_epi32(seed);
__m128i g = _mm_set1_epi32(c1 * seed);
__m128i f = g;
__m128i k = _mm_set1_epi32(0xe6546b64);
if (len < 80) {
__m128i a = Fetch128(s);
__m128i b = Fetch128(s + 16);
__m128i c = Fetch128(s + (len - 15) / 2);
__m128i d = Fetch128(s + len - 32);
__m128i e = Fetch128(s + len - 16);
h = Add(h, a);
g = Add(g, b);
g = Shuffle0321(g);
f = Add(f, c);
__m128i be = Add(b, Mulc1(e));
h = Add(h, f);
f = Add(f, h);
h = Add(Murk(d, h), e);
k = Xor(k, _mm_shuffle_epi8(g, f));
g = Add(Xor(c, g), a);
f = Add(Xor(be, f), d);
k = Add(k, be);
k = Add(k, _mm_shuffle_epi8(f, h));
f = Add(f, g);
g = Add(g, f);
g = Add(_mm_set1_epi32(len), Mulc1(g));
} else {
// len >= 80
// The following is loosely modelled after farmhashmk::Hash32.
size_t iters = (len - 1) / 80;
len -= iters * 80;
#undef Chunk
#define Chunk() do { \
__m128i a = Fetch128(s); \
__m128i b = Fetch128(s + 16); \
__m128i c = Fetch128(s + 32); \
__m128i d = Fetch128(s + 48); \
__m128i e = Fetch128(s + 64); \
h = Add(h, a); \
g = Add(g, b); \
g = Shuffle0321(g); \
f = Add(f, c); \
__m128i be = Add(b, Mulc1(e)); \
h = Add(h, f); \
f = Add(f, h); \
h = Add(Murk(d, h), e); \
k = Xor(k, _mm_shuffle_epi8(g, f)); \
g = Add(Xor(c, g), a); \
f = Add(Xor(be, f), d); \
k = Add(k, be); \
k = Add(k, _mm_shuffle_epi8(f, h)); \
f = Add(f, g); \
g = Add(g, f); \
f = Mulc1(f); \
} while (0)
while (iters-- != 0) {
Chunk();
s += 80;
}
if (len != 0) {
h = Add(h, _mm_set1_epi32(len));
s = s + len - 80;
Chunk();
}
}
g = Shuffle0321(g);
k = Xor(k, g);
f = Mulc1(f);
k = Mulc2(k);
g = Mulc1(g);
h = Mulc2(h);
k = Add(k, _mm_shuffle_epi8(g, f));
h = Add(h, f);
f = Add(f, h);
g = Add(g, k);
k = Add(k, g);
k = Xor(k, _mm_shuffle_epi8(f, h));
__m128i buf[4];
buf[0] = f;
buf[1] = g;
buf[2] = k;
buf[3] = h;
s = reinterpret_cast<char*>(buf);
uint32_t x = Fetch(s);
uint32_t y = Fetch(s+4);
uint32_t z = Fetch(s+8);
x = _mm_crc32_u32(x, Fetch(s+12));
y = _mm_crc32_u32(y, Fetch(s+16));
z = _mm_crc32_u32(z * c1, Fetch(s+20));
x = _mm_crc32_u32(x, Fetch(s+24));
y = _mm_crc32_u32(y * c1, Fetch(s+28));
uint32_t o = y;
z = _mm_crc32_u32(z, Fetch(s+32));
x = _mm_crc32_u32(x * c1, Fetch(s+36));
y = _mm_crc32_u32(y, Fetch(s+40));
z = _mm_crc32_u32(z * c1, Fetch(s+44));
x = _mm_crc32_u32(x, Fetch(s+48));
y = _mm_crc32_u32(y * c1, Fetch(s+52));
z = _mm_crc32_u32(z, Fetch(s+56));
x = _mm_crc32_u32(x, Fetch(s+60));
return (o - x + y - z) * c1;
}
#undef Chunk
#undef Murk
#undef Mulc2
#undef Mulc1
uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) {
if (len <= 24) {
if (len >= 13) return farmhashmk::Hash32Len13to24(s, len, seed * c1);
else if (len >= 5) return farmhashmk::Hash32Len5to12(s, len, seed);
else return farmhashmk::Hash32Len0to4(s, len, seed);
}
uint32_t h = farmhashmk::Hash32Len13to24(s, 24, seed ^ len);
return _mm_crc32_u32(Hash32(s + 24, len - 24) + seed, h);
}
#endif
} // namespace farmhashsa
namespace farmhashcc {
// This file provides a 32-bit hash equivalent to CityHash32 (v1.1.1)
// and a 128-bit hash equivalent to CityHash128 (v1.1.1). It also provides
// a seeded 32-bit hash function similar to CityHash32.
#undef Fetch
#define Fetch Fetch32
#undef Rotate
#define Rotate Rotate32
#undef Bswap
#define Bswap Bswap32
STATIC_INLINE uint32_t Hash32Len13to24(const char *s, size_t len) {
uint32_t a = Fetch(s - 4 + (len >> 1));
uint32_t b = Fetch(s + 4);
uint32_t c = Fetch(s + len - 8);
uint32_t d = Fetch(s + (len >> 1));
uint32_t e = Fetch(s);
uint32_t f = Fetch(s + len - 4);
uint32_t h = len;
return fmix(Mur(f, Mur(e, Mur(d, Mur(c, Mur(b, Mur(a, h)))))));
}
STATIC_INLINE uint32_t Hash32Len0to4(const char *s, size_t len) {
uint32_t b = 0;
uint32_t c = 9;
for (size_t i = 0; i < len; i++) {
signed char v = s[i];
b = b * c1 + v;
c ^= b;
}
return fmix(Mur(b, Mur(len, c)));
}
STATIC_INLINE uint32_t Hash32Len5to12(const char *s, size_t len) {
uint32_t a = len, b = len * 5, c = 9, d = b;
a += Fetch(s);
b += Fetch(s + len - 4);
c += Fetch(s + ((len >> 1) & 4));
return fmix(Mur(c, Mur(b, Mur(a, d))));
}
uint32_t Hash32(const char *s, size_t len) {
if (len <= 24) {
return len <= 12 ?
(len <= 4 ? Hash32Len0to4(s, len) : Hash32Len5to12(s, len)) :
Hash32Len13to24(s, len);
}
// len > 24
uint32_t h = len, g = c1 * len, f = g;
uint32_t a0 = Rotate(Fetch(s + len - 4) * c1, 17) * c2;
uint32_t a1 = Rotate(Fetch(s + len - 8) * c1, 17) * c2;
uint32_t a2 = Rotate(Fetch(s + len - 16) * c1, 17) * c2;
uint32_t a3 = Rotate(Fetch(s + len - 12) * c1, 17) * c2;
uint32_t a4 = Rotate(Fetch(s + len - 20) * c1, 17) * c2;
h ^= a0;
h = Rotate(h, 19);
h = h * 5 + 0xe6546b64;
h ^= a2;
h = Rotate(h, 19);
h = h * 5 + 0xe6546b64;
g ^= a1;
g = Rotate(g, 19);
g = g * 5 + 0xe6546b64;
g ^= a3;
g = Rotate(g, 19);
g = g * 5 + 0xe6546b64;
f += a4;
f = Rotate(f, 19);
f = f * 5 + 0xe6546b64;
size_t iters = (len - 1) / 20;
do {
uint32_t a0 = Rotate(Fetch(s) * c1, 17) * c2;
uint32_t a1 = Fetch(s + 4);
uint32_t a2 = Rotate(Fetch(s + 8) * c1, 17) * c2;
uint32_t a3 = Rotate(Fetch(s + 12) * c1, 17) * c2;
uint32_t a4 = Fetch(s + 16);
h ^= a0;
h = Rotate(h, 18);
h = h * 5 + 0xe6546b64;
f += a1;
f = Rotate(f, 19);
f = f * c1;
g += a2;
g = Rotate(g, 18);
g = g * 5 + 0xe6546b64;
h ^= a3 + a1;
h = Rotate(h, 19);
h = h * 5 + 0xe6546b64;
g ^= a4;
g = Bswap(g) * 5;
h += a4 * 5;
h = Bswap(h);
f += a0;
PERMUTE3(f, h, g);
s += 20;
} while (--iters != 0);
g = Rotate(g, 11) * c1;
g = Rotate(g, 17) * c1;
f = Rotate(f, 11) * c1;
f = Rotate(f, 17) * c1;
h = Rotate(h + g, 19);
h = h * 5 + 0xe6546b64;
h = Rotate(h, 17) * c1;
h = Rotate(h + f, 19);
h = h * 5 + 0xe6546b64;
h = Rotate(h, 17) * c1;
return h;
}
uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) {
if (len <= 24) {
if (len >= 13) return farmhashmk::Hash32Len13to24(s, len, seed * c1);
else if (len >= 5) return farmhashmk::Hash32Len5to12(s, len, seed);
else return farmhashmk::Hash32Len0to4(s, len, seed);
}
uint32_t h = farmhashmk::Hash32Len13to24(s, 24, seed ^ len);
return Mur(Hash32(s + 24, len - 24) + seed, h);
}
#undef Fetch
#define Fetch Fetch64
#undef Rotate
#define Rotate Rotate64
#undef Bswap
#define Bswap Bswap64
STATIC_INLINE uint64_t ShiftMix(uint64_t val) {
return val ^ (val >> 47);
}
STATIC_INLINE uint64_t HashLen16(uint64_t u, uint64_t v) {
return Hash128to64(Uint128(u, v));
}
STATIC_INLINE uint64_t HashLen16(uint64_t u, uint64_t v, uint64_t mul) {
// Murmur-inspired hashing.
uint64_t a = (u ^ v) * mul;
a ^= (a >> 47);
uint64_t b = (v ^ a) * mul;
b ^= (b >> 47);
b *= mul;
return b;
}
STATIC_INLINE uint64_t HashLen0to16(const char *s, size_t len) {
if (len >= 8) {
uint64_t mul = k2 + len * 2;
uint64_t a = Fetch(s) + k2;
uint64_t b = Fetch(s + len - 8);
uint64_t c = Rotate(b, 37) * mul + a;
uint64_t d = (Rotate(a, 25) + b) * mul;
return HashLen16(c, d, mul);
}
if (len >= 4) {
uint64_t mul = k2 + len * 2;
uint64_t a = Fetch32(s);
return HashLen16(len + (a << 3), Fetch32(s + len - 4), mul);
}
if (len > 0) {
uint8_t a = s[0];
uint8_t b = s[len >> 1];
uint8_t c = s[len - 1];
uint32_t y = static_cast<uint32_t>(a) + (static_cast<uint32_t>(b) << 8);
uint32_t z = len + (static_cast<uint32_t>(c) << 2);
return ShiftMix(y * k2 ^ z * k0) * k2;
}
return k2;
}
// Return a 16-byte hash for 48 bytes. Quick and dirty.
// Callers do best to use "random-looking" values for a and b.
STATIC_INLINE pair<uint64_t, uint64_t> WeakHashLen32WithSeeds(
uint64_t w, uint64_t x, uint64_t y, uint64_t z, uint64_t a, uint64_t b) {
a += w;
b = Rotate(b + a + z, 21);
uint64_t c = a;
a += x;
a += y;
b += Rotate(a, 44);
return make_pair(a + z, b + c);
}
// Return a 16-byte hash for s[0] ... s[31], a, and b. Quick and dirty.
STATIC_INLINE pair<uint64_t, uint64_t> WeakHashLen32WithSeeds(
const char* s, uint64_t a, uint64_t b) {
return WeakHashLen32WithSeeds(Fetch(s),
Fetch(s + 8),
Fetch(s + 16),
Fetch(s + 24),
a,
b);
}
// A subroutine for CityHash128(). Returns a decent 128-bit hash for strings
// of any length representable in signed long. Based on City and Murmur.
STATIC_INLINE uint128_t CityMurmur(const char *s, size_t len, uint128_t seed) {
uint64_t a = Uint128Low64(seed);
uint64_t b = Uint128High64(seed);
uint64_t c = 0;
uint64_t d = 0;
signed long l = len - 16;
if (l <= 0) { // len <= 16
a = ShiftMix(a * k1) * k1;
c = b * k1 + HashLen0to16(s, len);
d = ShiftMix(a + (len >= 8 ? Fetch(s) : c));
} else { // len > 16
c = HashLen16(Fetch(s + len - 8) + k1, a);
d = HashLen16(b + len, c + Fetch(s + len - 16));
a += d;
do {
a ^= ShiftMix(Fetch(s) * k1) * k1;
a *= k1;
b ^= a;
c ^= ShiftMix(Fetch(s + 8) * k1) * k1;
c *= k1;
d ^= c;
s += 16;
l -= 16;
} while (l > 0);
}
a = HashLen16(a, c);
b = HashLen16(d, b);
return uint128_t(a ^ b, HashLen16(b, a));
}
uint128_t CityHash128WithSeed(const char *s, size_t len, uint128_t seed) {
if (len < 128) {
return CityMurmur(s, len, seed);
}
// We expect len >= 128 to be the common case. Keep 56 bytes of state:
// v, w, x, y, and z.
pair<uint64_t, uint64_t> v, w;
uint64_t x = Uint128Low64(seed);
uint64_t y = Uint128High64(seed);
uint64_t z = len * k1;
v.first = Rotate(y ^ k1, 49) * k1 + Fetch(s);
v.second = Rotate(v.first, 42) * k1 + Fetch(s + 8);
w.first = Rotate(y + z, 35) * k1 + x;
w.second = Rotate(x + Fetch(s + 88), 53) * k1;
// This is the same inner loop as CityHash64(), manually unrolled.
do {
x = Rotate(x + y + v.first + Fetch(s + 8), 37) * k1;
y = Rotate(y + v.second + Fetch(s + 48), 42) * k1;
x ^= w.second;
y += v.first + Fetch(s + 40);
z = Rotate(z + w.first, 33) * k1;
v = WeakHashLen32WithSeeds(s, v.second * k1, x + w.first);
w = WeakHashLen32WithSeeds(s + 32, z + w.second, y + Fetch(s + 16));
std::swap(z, x);
s += 64;
x = Rotate(x + y + v.first + Fetch(s + 8), 37) * k1;
y = Rotate(y + v.second + Fetch(s + 48), 42) * k1;
x ^= w.second;
y += v.first + Fetch(s + 40);
z = Rotate(z + w.first, 33) * k1;
v = WeakHashLen32WithSeeds(s, v.second * k1, x + w.first);
w = WeakHashLen32WithSeeds(s + 32, z + w.second, y + Fetch(s + 16));
std::swap(z, x);
s += 64;
len -= 128;
} while (LIKELY(len >= 128));
x += Rotate(v.first + z, 49) * k0;
y = y * k0 + Rotate(w.second, 37);
z = z * k0 + Rotate(w.first, 27);
w.first *= 9;
v.first *= k0;
// If 0 < len < 128, hash up to 4 chunks of 32 bytes each from the end of s.
for (size_t tail_done = 0; tail_done < len; ) {
tail_done += 32;
y = Rotate(x + y, 42) * k0 + v.second;
w.first += Fetch(s + len - tail_done + 16);
x = x * k0 + w.first;
z += w.second + Fetch(s + len - tail_done);
w.second += v.first;
v = WeakHashLen32WithSeeds(s + len - tail_done, v.first + z, v.second);
v.first *= k0;
}
// At this point our 56 bytes of state should contain more than
// enough information for a strong 128-bit hash. We use two
// different 56-byte-to-8-byte hashes to get a 16-byte final result.
x = HashLen16(x, v.first);
y = HashLen16(y + z, w.first);
return uint128_t(HashLen16(x + v.second, w.second) + y,
HashLen16(x + w.second, y + v.second));
}
STATIC_INLINE uint128_t CityHash128(const char *s, size_t len) {
return len >= 16 ?
CityHash128WithSeed(s + 16, len - 16,
uint128_t(Fetch(s), Fetch(s + 8) + k0)) :
CityHash128WithSeed(s, len, uint128_t(k0, k1));
}
uint128_t Fingerprint128(const char* s, size_t len) {
return CityHash128(s, len);
}
} // namespace farmhashcc
namespace NAMESPACE_FOR_HASH_FUNCTIONS {
// BASIC STRING HASHING
// Hash function for a byte array. See also Hash(), below.
// May change from time to time, may differ on different platforms, may differ
// depending on NDEBUG.
uint32_t Hash32(const char* s, size_t len) {
return DebugTweak(
(can_use_sse41 & x86_64) ? farmhashnt::Hash32(s, len) :
(can_use_sse42 & can_use_aesni) ? farmhashsu::Hash32(s, len) :
can_use_sse42 ? farmhashsa::Hash32(s, len) :
farmhashmk::Hash32(s, len));
}
// Hash function for a byte array. For convenience, a 32-bit seed is also
// hashed into the result.
// May change from time to time, may differ on different platforms, may differ
// depending on NDEBUG.
uint32_t Hash32WithSeed(const char* s, size_t len, uint32_t seed) {
return DebugTweak(
(can_use_sse41 & x86_64) ? farmhashnt::Hash32WithSeed(s, len, seed) :
(can_use_sse42 & can_use_aesni) ? farmhashsu::Hash32WithSeed(s, len, seed) :
can_use_sse42 ? farmhashsa::Hash32WithSeed(s, len, seed) :
farmhashmk::Hash32WithSeed(s, len, seed));
}
// Hash function for a byte array. For convenience, a 64-bit seed is also
// hashed into the result. See also Hash(), below.
// May change from time to time, may differ on different platforms, may differ
// depending on NDEBUG.
uint64_t Hash64(const char* s, size_t len) {
return DebugTweak(
(can_use_sse42 & x86_64) ?
farmhashte::Hash64(s, len) :
farmhashxo::Hash64(s, len));
}
// Hash function for a byte array.
// May change from time to time, may differ on different platforms, may differ
// depending on NDEBUG.
size_t Hash(const char* s, size_t len) {
return sizeof(size_t) == 8 ? Hash64(s, len) : Hash32(s, len);
}
// Hash function for a byte array. For convenience, a 64-bit seed is also
// hashed into the result.
// May change from time to time, may differ on different platforms, may differ
// depending on NDEBUG.
uint64_t Hash64WithSeed(const char* s, size_t len, uint64_t seed) {
return DebugTweak(farmhashna::Hash64WithSeed(s, len, seed));
}
// Hash function for a byte array. For convenience, two seeds are also
// hashed into the result.
// May change from time to time, may differ on different platforms, may differ
// depending on NDEBUG.
uint64_t Hash64WithSeeds(const char* s, size_t len, uint64_t seed0, uint64_t seed1) {
return DebugTweak(farmhashna::Hash64WithSeeds(s, len, seed0, seed1));
}
// Hash function for a byte array.
// May change from time to time, may differ on different platforms, may differ
// depending on NDEBUG.
uint128_t Hash128(const char* s, size_t len) {
return DebugTweak(farmhashcc::Fingerprint128(s, len));
}
// Hash function for a byte array. For convenience, a 128-bit seed is also
// hashed into the result.
// May change from time to time, may differ on different platforms, may differ
// depending on NDEBUG.
uint128_t Hash128WithSeed(const char* s, size_t len, uint128_t seed) {
return DebugTweak(farmhashcc::CityHash128WithSeed(s, len, seed));
}
// BASIC NON-STRING HASHING
// FINGERPRINTING (i.e., good, portable, forever-fixed hash functions)
// Fingerprint function for a byte array. Most useful in 32-bit binaries.
uint32_t Fingerprint32(const char* s, size_t len) {
return farmhashmk::Hash32(s, len);
}
// Fingerprint function for a byte array.
uint64_t Fingerprint64(const char* s, size_t len) {
return farmhashna::Hash64(s, len);
}
// Fingerprint function for a byte array.
uint128_t Fingerprint128(const char* s, size_t len) {
return farmhashcc::Fingerprint128(s, len);
}
// Older and still available but perhaps not as fast as the above:
// farmhashns::Hash32{,WithSeed}()
} // namespace NAMESPACE_FOR_HASH_FUNCTIONS
#if FARMHASHSELFTEST
#ifndef FARMHASH_SELF_TEST_GUARD
#define FARMHASH_SELF_TEST_GUARD
#include <cstdio>
#include <iostream>
#include <string.h>
using std::cout;
using std::cerr;
using std::endl;
using std::hex;
static const uint64_t kSeed0 = 1234567;
static const uint64_t kSeed1 = k0;
static const int kDataSize = 1 << 20;
static const int kTestSize = 300;
#define kSeed128 Uint128(kSeed0, kSeed1)
static char data[kDataSize];
static int completed_self_tests = 0;
static int errors = 0;
// Initialize data to pseudorandom values.
void Setup() {
if (completed_self_tests == 0) {
uint64_t a = 9;
uint64_t b = 777;
for (int i = 0; i < kDataSize; i++) {
a += b;
b += a;
a = (a ^ (a >> 41)) * k0;
b = (b ^ (b >> 41)) * k0 + i;
uint8_t u = b >> 37;
memcpy(data + i, &u, 1); // uint8_t -> char
}
}
}
int NoteErrors() {
#define NUM_SELF_TESTS 9
if (++completed_self_tests == NUM_SELF_TESTS)
std::exit(errors > 0);
return errors;
}
template <typename T> inline bool IsNonZero(T x) {
return x != 0;
}
template <> inline bool IsNonZero<uint128_t>(uint128_t x) {
return x != Uint128(0, 0);
}
#endif // FARMHASH_SELF_TEST_GUARD
namespace farmhashccTest {
uint32_t CreateSeed(int offset, int salt) {
uint32_t h = static_cast<uint32_t>(salt & 0xffffffff);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h += static_cast<uint32_t>(offset & 0xffffffff);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
return h;
}
#undef SEED
#undef SEED1
#undef SEED0
#define SEED CreateSeed(offset, -1)
#define SEED0 CreateSeed(offset, 0)
#define SEED1 CreateSeed(offset, 1)
#undef TESTING
#define TESTING 1
#if TESTING
uint32_t expected[] = {
4223616069u,
3696677242u,
1039179260u, 1690343979u, 1018511555u, 2464489001u,
20368522u, 2663783964u, 175201532u, 1619210592u,
4081014168u,
2576519988u,
3285042206u, 502478099u, 739479538u, 1500332790u,
13754768u, 3789353455u, 3473868058u, 1909255088u,
2212771159u,
1112731063u,
826915357u, 2893489933u, 118369799u, 1848668220u,
1308219822u, 249416982u, 64306364u, 4221800195u,
1020067935u,
3955445564u,
563346294u, 550236731u, 2339016688u, 1826259714u,
3872358639u, 2295981050u, 1870005390u, 4015628802u,
1451961420u,
653440099u,
1292493871u, 164377749u, 1717712483u, 463414587u,
3924343675u, 1050492084u, 3566618804u, 2046983362u,
31917516u,
2957164615u,
230718965u, 999595115u, 3534822176u, 2175709186u,
965707431u, 441796222u, 2481718051u, 1827777486u,
2590087362u,
3879448744u,
3515079898u, 1601433082u, 982764532u, 254808716u,
1293372530u, 4205605817u, 947001462u, 1138890052u,
176305566u,
2447367541u,
2973802542u, 4123621138u, 3083865840u, 1706367795u,
792114347u, 2880110657u, 440613768u, 195054868u,
1359016305u,
3363804638u,
649488537u, 1624045597u, 1441938215u, 3147758996u,
3199173578u, 2597283203u, 2191333609u, 3763129144u,
1117290165u,
1062549743u,
2565615889u, 1046361554u, 1581968261u, 1058773671u,
1123053168u, 3807622275u, 1486749916u, 3900816089u,
2437877004u,
1894455839u,
1912520953u, 1914997013u, 561048608u, 1643267444u,
3671572006u, 194811086u, 1468911468u, 2179206286u,
673206794u,
3486923651u,
3741426466u, 3292160512u, 697001377u, 1900763774u,
3726097344u, 629282039u, 3578723715u, 2868028489u,
3269862919u,
2303349487u,
3643953525u, 2307255916u, 849996280u, 732080434u,
909961480u, 3542445214u, 2628347095u, 4236856917u,
1380660650u,
2631821908u,
2007289004u, 3509705198u, 3788541675u, 789457322u,
3090670546u, 638977894u, 3503881773u, 947102987u,
1525325287u,
1816697045u,
2706647405u, 288763142u, 3505438495u, 481308609u,
2882636782u, 3745162621u, 3503467033u, 428247823u,
176408838u,
333551502u,
1001068721u, 1681483651u, 75380831u, 4191469679u,
3627361839u, 2736617386u, 3120737438u, 1297502456u,
864896482u,
85674920u,
2886047255u, 4119881331u, 2496990525u, 3442502055u,
1806582817u, 3186345024u, 4099591287u, 2560171465u,
3489229104u,
3065015872u,
2755089808u, 3098442882u, 378524719u, 2664097023u,
1771960725u, 2901182183u, 55258521u, 1266621443u,
581644891u,
37790450u,
1800731704u, 3601350920u, 53428754u, 2759476837u,
3391093099u, 1496510311u, 2511119507u, 2636877410u,
631613207u,
1573846064u,
260484875u, 1088212603u, 2369525206u, 322522428u,
3191396600u, 2076543340u, 1552496658u, 2739811558u,
3867875546u,
2051584261u,
2126250818u, 901517871u, 3651631165u, 1323139145u,
1521111765u, 477802997u, 3508559783u, 383954241u,
3804516756u,
4250206331u,
2655954340u, 2484996477u, 1417544845u, 1520282298u,
2745204366u, 2869345147u, 1872738335u, 2592877343u,
1619744564u,
1804962124u,
3458679890u, 423948620u, 273645618u, 4187865426u,
376057175u, 2943431463u, 3581950599u, 1035398331u,
1088213445u,
861988903u,
1323370244u, 777069428u, 506235917u, 369720851u,
2789995854u, 230915180u, 1505086948u, 940361236u,
3727873235u,
1159167499u,
1860302871u, 3456858862u, 3923555152u, 2131072714u,
2910461068u, 3671950363u, 2010742682u, 4088068851u,
3616470388u,
2087714788u,
221675509u, 1230154072u, 3450704646u, 1463226695u,
1998357699u, 266026801u, 619568740u, 3560427266u,
4148162586u,
3150417316u,
1356375822u, 2056097622u, 627905802u, 3881675638u,
2309738053u, 971916703u, 3447805361u, 1673575328u,
673084328u,
3317849401u,
2836362782u, 2377208890u, 3275350588u, 158350552u,
2553241779u, 2497264995u, 3262882649u, 3897937187u,
1598963653u,
3068514414u,
601541505u, 374517071u, 3380795976u, 235752573u,
284670003u, 2990192160u, 904937105u, 2306579150u,
2117362589u,
1635274830u,
3355572906u, 170799903u, 1226685528u, 664567688u,
413219134u, 878324258u, 4026159448u, 3620649295u,
1823625377u,
3175888439u,
1759344347u, 2640637095u, 3549558u, 2192984935u,
978623493u, 804017880u, 3877562323u, 3843116489u,
1641748342u,
1853539444u,
3001178468u, 3443560727u, 2685426077u, 1653064722u,
349231508u, 2726789654u, 3136215581u, 768402830u,
269384321u,
531936536u,
2592883487u, 1343156334u, 3628619802u, 1477143570u,
4269458419u, 3285611028u, 959104925u, 2712290710u,
3480237248u,
835796333u,
2020636251u, 1191914589u, 126521603u, 4288023938u,
3731699932u, 2136758855u, 985780142u, 193807575u,
1850544433u,
653947619u,
3929316796u, 381871169u, 950486363u, 1787262279u,
360480382u, 1800636585u, 1039258631u, 3682073259u,
1262819303u,
1786000319u,
1570627191u, 893065837u, 301304916u, 1478469809u,
623018819u, 2742232545u, 2058913014u, 1706060059u,
2421125401u,
1315829592u,
3208766775u, 1805586156u, 575853086u, 3085025513u,
4010908260u, 2344058256u, 3814407434u, 1458485673u,
2474514786u,
3581895658u,
2710719679u, 190812706u, 2135454262u, 2620080728u,
3400757986u, 1669914857u, 1559978393u, 1629811331u,
3096616493u,
1391424435u,
4158376003u, 1015657076u, 794783832u, 479952178u,
1150290207u, 2497437906u, 231815090u, 755078067u,
3832053281u,
63649475u,
2415822606u, 4105027719u, 1706992318u, 1106598740u,
3941945667u, 1271300761u, 505882259u, 760186809u,
2657183368u,
1925422058u,
1039773764u, 880219458u, 4275949176u, 1556833823u,
925882132u, 4216310340u, 757497522u, 461833914u,
3884002070u,
2790957660u,
2100050089u, 651959176u, 1380301291u, 1289124125u,
452314403u, 226156280u, 3306924715u, 1750807758u,
2290180542u,
1953760569u,
2253069096u, 3960924806u, 1786291620u, 60736185u,
2569018293u, 3870479674u, 2247005661u, 2239850953u,
4261808536u,
3282975782u,
780945879u, 3349849383u, 1579362556u, 2265045884u,
905088740u, 725212379u, 3156479246u, 2501620391u,
3062836263u,
4070422690u,
996797869u, 4082582315u, 976105756u, 303983602u,
1862104804u, 3864508254u, 3383979677u, 2835500286u,
2798364010u,
519359476u,
3447342725u, 194373889u, 3313466630u, 232399983u,
2841787856u, 1672751454u, 3345183154u, 1805381384u,
2226129336u,
2847829057u,
2350774567u, 2838540121u, 2757948482u, 1017002062u,
2329150951u, 2171488196u, 3668619047u, 3874977844u,
3287966998u,
262346753u,
2493054715u, 2298644430u, 2926101182u, 1528457638u,
598656233u, 2615845874u, 989110727u, 820441411u,
253617372u,
2201077208u,
2047569338u, 3114356329u, 3335563734u, 2967673540u,
768438341u, 1417708203u, 3873718246u, 1538441843u,
1279167650u,
3917966776u,
2218481734u, 1015935150u, 1957845042u, 1318150213u,
3146423971u, 4218994877u, 1162470863u, 1519718292u,
2594658906u,
665870414u,
3430347817u, 3933868731u, 1597041394u, 3138684682u,
3398212027u, 1064647658u, 1576321132u, 14792918u,
224938029u,
3706456050u,
847274786u, 2645698692u, 1743374687u, 2343133224u,
3066596790u, 2857270120u, 200596308u, 452055528u,
2319312082u,
3488655402u,
4146865894u, 608206438u, 2699777051u, 3687240713u,
327957508u, 3664730153u, 568134564u, 2993484554u,
4159860363u,
4274533921u,
1079994063u, 2360220210u, 3609597760u, 3639708902u,
2836180437u, 1069910270u, 1892427666u, 1874729790u,
1267712826u,
121886940u,
3572289214u, 2475945610u, 783779452u, 588827737u,
1531395014u, 2085084212u, 2219189792u, 3981444548u,
2218885336u,
1691622694u,
2053232885u, 1386558530u, 2182946189u, 2365247285u,
1871081313u, 2935751853u, 38413723u, 543465863u,
900691890u,
2899905665u,
575120562u, 93133904u, 457154948u, 2983705792u,
4232229200u, 2038565963u, 614693984u, 3405328302u,
4083090010u,
2088004171u,
244031209u, 1861889294u, 2417109253u, 3299562328u,
4158642443u, 4199064449u, 3161611046u, 885015950u,
3677904099u,
2969861785u,
772348805u, 1712263832u, 3219357614u, 484271305u,
3645706114u, 2059620251u, 409557488u, 2278896731u,
224475749u,
3523022952u,
2057140088u, 449131785u, 1149879244u, 4255363996u,
3602720135u, 1690010854u, 2503998822u, 2750828466u,
3340671802u,
1447583863u,
2649684943u, 2764747249u, 3046070595u, 3441726138u,
3840332559u, 3156747501u, 1288666680u, 1472744459u,
3452391933u,
1617542784u,
217869690u, 3718469527u, 348639731u, 590532355u,
43789787u, 22606314u, 1621559290u, 2231743261u,
2234620879u,
544748955u,
3169387920u, 203343594u, 3272552527u, 1078282365u,
809576321u, 854207584u, 3625491053u, 1193737267u,
1628966807u,
2661421060u,
2433442061u, 3886639039u, 2149304418u, 303000565u,
1432830882u, 137378235u, 1135974068u, 318705754u,
2491227157u,
2627534472u,
3520352233u, 2488397682u, 3969194920u, 3843962181u,
2135981459u, 2611933220u, 799460731u, 2300968851u,
3412851628u,
3070914013u,
3555224260u, 4125937572u, 240359903u, 722496673u,
2061023600u, 3843919221u, 2759960043u, 1191155322u,
1504041490u,
3735253656u,
1773124736u, 101110011u, 1627699578u, 2645634551u,
263603947u, 1388368439u, 677146538u, 1644201982u,
2625699644u,
2403862553u,
2426069017u, 3613511705u, 915141802u, 2981654265u,
3474818167u, 2611101773u, 627891434u, 762754924u,
2143021902u,
51067670u,
4017746573u, 2269879853u, 3037857950u, 2388899692u,
582729171u, 1886116725u, 2281219772u, 264704948u,
3509984037u,
4078683368u,
2172959411u, 1807195632u, 3357092302u, 2253764928u,
2320369390u, 3076335959u, 2623583210u, 168378015u,
1435562650u,
1100977467u,
3160490319u, 2550328495u, 2396855930u, 1347823908u,
1617990918u, 3849653099u, 3224111576u, 1681539821u,
4171542880u,
552200045u,
3562947778u, 1676237880u, 3747732307u, 2453332913u,
865530667u, 3566636849u, 3485502777u, 336779723u,
2535942410u,
1685000184u,
820545711u, 1893670486u, 1273910461u, 1193758569u,
970365241u, 381205962u, 3612810852u, 1160577445u,
541488143u,
4005031080u,
2333965236u, 2419855455u, 3484533538u, 3073937876u,
908466956u, 661391539u, 2342122412u, 1467049112u,
1785800827u,
135343033u,
139643209u, 2438375667u, 974654058u, 3216478230u,
3807620420u, 779043363u, 2812846449u, 333254784u,
1025244024u,
2242303095u,
2476683742u, 350018683u, 174652916u, 933097576u,
826905896u, 559603581u, 2777181260u, 164915169u,
4070353203u,
1459055748u,
297303985u, 3103837241u, 3812514233u, 232265137u,
2032819099u, 1523091376u, 3531238208u, 1403510182u,
2886832080u,
2599705941u,
2789695716u, 68437968u, 3823813791u, 1040994569u,
3024194990u, 2461740520u, 3735391266u, 2042207153u,
2461678616u,
3519231840u,
1344224923u, 411442756u, 1179779351u, 7661528u,
778352196u, 3288808867u, 589356197u, 2627504511u,
3374744599u,
3312172905u,
357423007u, 3539567796u, 4044452215u, 1445118403u,
2937983820u, 184089910u, 346201845u, 2427295202u,
1345448010u,
2884434843u,
3085001879u, 2640105409u, 315310640u, 3530289798u,
3362974764u, 963602652u, 75228477u, 3509381180u,
4012777756u,
2380345941u,
1073137836u, 2083960378u, 1220315185u, 3628720934u,
3508867818u, 67148343u, 3558085158u, 1753943368u,
863309561u,
2844713625u,
441921850u, 854732254u, 816793316u, 2555428747u,
3440623414u, 1707304366u, 3189874375u, 1623229221u,
1220335976u,
806745430u,
3909262947u, 1680369031u, 2926179486u, 3410391660u,
3991630434u, 2876458763u, 1179167079u, 536360759u,
1592117159u,
1514343977u,
1032622306u, 2057494855u, 784938958u, 178402996u,
1152907972u, 2326185495u, 2939973666u, 4181120253u,
552831733u,
664251856u,
1297139539u, 1969357631u, 1474065957u, 3055419017u,
3395829380u, 3316562752u, 2168409017u, 614624786u,
3585854336u,
668291094u,
1162889217u, 3773171307u, 2263271126u, 355089668u,
3195850578u, 3396793277u, 3519870267u, 527857605u,
3972392320u,
2224315010u,
4047225561u, 3271434798u, 3192704713u, 2798505213u,
3932215896u, 3792924012u, 3796843756u, 453872975u,
4050552799u,
1056432676u,
928166947u, 121311642u, 930989547u, 2087070683u,
1288978057u, 1556325239u, 1812435626u, 1682385724u,
1214364933u,
904760776u,
3957045528u, 3949822847u, 2411065880u, 3716420732u,
3424837835u, 3833550693u, 1799375326u, 2012368921u,
2768764136u,
1786111037u,
4055479315u, 3751639533u, 2808224623u, 3492656387u,
1306824780u, 2624000170u, 3134795218u, 1778409297u,
3900821801u,
593336325u,
2772069220u, 2980873673u, 3574497158u, 3994780459u,
4246519854u, 3482758570u, 4228015183u, 33101083u,
1769887734u,
4158035314u,
3690638998u, 1119035482u, 4134969651u, 2483207353u,
3932823321u, 285829887u, 3485140138u, 1304815138u,
995608264u,
3133997465u,
1195477617u, 2147693728u, 3506673112u, 4234467492u,
1183174337u, 1395340482u, 769199343u, 193262308u,
2798920256u,
3827889422u,
3399695609u, 3036045724u, 2999477386u, 3567001759u,
2682864314u, 1414023907u, 3699872975u, 3369870701u,
2662284872u,
2179640019u,
2485080099u, 3234415609u, 3755915606u, 1339453220u,
1567403399u, 2076272391u, 293946298u, 3861962750u,
1291949822u,
2916864995u,
132642326u, 2215117062u, 2205863575u, 2488805750u,
405632860u, 3248129390u, 2952606864u, 896734759u,
2047417173u,
3865951392u,
657296855u, 1328547532u, 3966511825u, 3959682388u,
4171801020u, 2981416957u, 1868896247u, 790081075u,
3143666398u,
2950766549u,
2065854887u, 2737081890u, 995061774u, 1510712611u,
2865954809u, 565044286u, 1565631102u, 1500654931u,
494822108u,
2803515503u,
1058154996u, 3506280187u, 856885925u, 4204610546u,
800905649u, 1130711562u, 558146282u, 2053400666u,
449794061u,
2643520245u,
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1911896517u, 1697006473u, 1145487066u, 1605663299u,
3053606724u,
2386289465u,
3821211369u, 1006215345u, 1256304829u, 1053001668u,
1289194958u, 118761054u, 1853688730u, 2803418011u,
188650809u,
3763686458u,
1006829556u, 2961984133u, 3390525025u, 2061199893u,
141792681u, 2439893463u, 2652982650u, 1804942682u,
1546510005u,
1246961405u,
2407577046u, 565772575u, 3751844810u, 2943166103u,
3750052451u, 3022527280u, 25162928u, 397381043u,
1818337632u,
3447363730u,
3936437150u, 2569420703u, 2215592390u, 2171555672u,
3665571006u, 4021712412u, 2939158353u, 4057813172u,
1823237318u,
103999245u,
3251978010u, 3591914940u, 3582495283u, 2519035265u,
3905726135u, 3180393349u, 2743117123u, 55247368u,
3325286701u,
705195946u,
1857526853u, 1480518550u, 3809990433u, 1398189338u,
3126362926u, 3959531492u, 1503658285u, 1977847740u,
3043964489u,
2613086143u,
1518119282u, 4238434900u, 3905746486u, 3064949667u,
1028122931u, 3309119457u, 4071194920u, 3096098907u,
4137180520u,
494467959u,
1231408687u, 1691606157u, 1793452569u, 2722196118u,
3478603952u, 1059665738u, 2282032278u, 3990268388u,
1719514651u,
4248311578u,
3799146721u, 898026304u, 3367808954u, 4162472815u,
170495870u, 1308116609u, 3428285344u, 1714716475u,
395576794u,
4153638621u,
2999745812u, 3483315953u, 304980828u, 595337120u,
3486516729u, 2331563143u, 2583609459u, 1885928417u,
3834283777u,
979337825u,
932057378u, 3124081189u, 1930356777u, 3865887996u,
4178282217u, 4214219408u, 3669465884u, 1472413856u,
3356866587u,
1012769806u,
3043639963u, 996996396u, 207308216u, 982967331u,
2991319933u, 318066902u, 721489670u, 1249967713u,
749240921u,
591392325u,
2379365192u, 2250868849u, 2163259329u, 143191325u,
3778285606u, 982149096u, 3536906200u, 2244353244u,
1443862317u,
3161549210u,
2183127464u, 2015409516u, 547003700u, 2032484282u,
523677821u, 4275663308u, 3827205526u, 3903778273u,
2444530525u,
2543645801u,
1173958423u, 784740616u, 2878693675u, 3127696736u,
3832037316u, 3161002398u, 4084166400u, 4213346853u,
223390424u,
4273380883u,
2130315482u, 3429606032u, 3367732613u, 1912357694u,
422632590u, 1266957023u, 3437535648u, 736404240u,
2281709372u,
415859912u,
212948797u, 351612650u, 3920561440u, 112963586u,
2230727543u, 2851076612u, 1990662634u, 2264296857u,
3131463650u,
2704034623u,
3541637839u, 2954232792u, 533986918u, 4158757533u,
65174248u, 4232639593u, 865906667u, 1948225652u,
779656112u,
3873989249u,
2372984749u, 2346988193u, 1104345713u, 1165654138u,
4045762610u, 3588205178u, 461363991u, 1111215752u,
1389675192u,
2404325151u,
2152228101u, 3808973622u, 1901235912u, 3458690696u,
314513238u, 2539459143u, 2847998873u, 952026138u,
2325705328u,
407844712u,
3727960715u, 2996448351u, 2374336760u, 3138756390u,
2600015243u, 539980418u, 1876285352u, 1670330799u,
1709360377u,
2868531654u,
494777964u, 2773053597u, 599486162u, 3962209577u,
1871328846u, 2171933018u, 110279472u, 384074780u,
4147021936u,
2333589647u,
4251778066u, 40493468u, 3099342316u, 4108779767u,
2812424588u, 954542332u, 2040682331u, 2251152306u,
45915516u,
259525626u,
1045384743u, 4134656562u, 749389261u, 874399445u,
616549904u, 2200447504u, 436024539u, 78972290u,
3210485762u,
1907985531u,
3013721395u, 4214533685u, 4198804243u, 534879265u,
1517190881u, 3756787754u, 1152563554u, 1718750948u,
777737463u,
1402478860u,
1824562784u, 1879401449u, 3515818786u, 513165201u,
1423491227u, 2103067918u, 2291777410u, 1097943000u,
};
// Return false only if offset is -1 and a spot check of 3 hashes all yield 0.
bool Test(int offset, int len = 0) {
#undef Check
#undef IsAlive
#define Check(x) do { \
const uint32_t actual = (x), e = expected[index++]; \
bool ok = actual == e; \
if (!ok) { \
cerr << "expected " << hex << e << " but got " << actual << endl; \
++errors; \
} \
assert(ok); \
} while (0)
#define IsAlive(x) do { alive += IsNonZero(x); } while (0)
// After the following line is where the uses of "Check" and such will go.
static int index = 0;
if (offset == -1) { int alive = 0; IsAlive(farmhashcc::Hash32WithSeed(data, len++, SEED)); IsAlive(farmhashcc::Hash32(data, len++)); { uint128_t u = farmhashcc::Fingerprint128(data, len++); uint64_t h = Uint128Low64(u); IsAlive(h >> 32); IsAlive((h << 32) >> 32); h = Uint128High64(u); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } len -= 3; return alive > 0; }
Check(farmhashcc::Hash32WithSeed(data + offset, len, SEED));
Check(farmhashcc::Hash32(data + offset, len));
{ uint128_t u = farmhashcc::Fingerprint128(data + offset, len); uint64_t h = Uint128Low64(u); Check(h >> 32); Check((h << 32) >> 32); h = Uint128High64(u); Check(h >> 32); Check((h << 32) >> 32); }
{ uint128_t u = farmhashcc::CityHash128WithSeed(data + offset, len, Uint128(SEED0, SEED1)); uint64_t h = Uint128Low64(u); Check(h >> 32); Check((h << 32) >> 32); h = Uint128High64(u); Check(h >> 32); Check((h << 32) >> 32); }
return true;
#undef Check
#undef IsAlive
}
int RunTest() {
Setup();
int i = 0;
cout << "Running farmhashccTest";
if (!Test(-1)) {
cout << "... Unavailable\n";
return NoteErrors();
}
// Good. The function is attempting to hash, so run the full test.
int errors_prior_to_test = errors;
for ( ; i < kTestSize - 1; i++) {
Test(i * i, i);
}
for ( ; i < kDataSize; i += i / 7) {
Test(0, i);
}
Test(0, kDataSize);
cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n");
return NoteErrors();
}
#else
// After the following line is where the code to print hash codes will go.
void Dump(int offset, int len) {
cout << farmhashcc::Hash32WithSeed(data + offset, len, SEED) << "u," << endl;
cout << farmhashcc::Hash32(data + offset, len) << "u," << endl;
{ uint128_t u = farmhashcc::Fingerprint128(data + offset, len); uint64_t h = Uint128Low64(u); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u, "; h = Uint128High64(u); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; }
{ uint128_t u = farmhashcc::CityHash128WithSeed(data + offset, len, Uint128(SEED0, SEED1)); uint64_t h = Uint128Low64(u); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u, "; h = Uint128High64(u); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; }
}
#endif
#undef SEED
#undef SEED1
#undef SEED0
} // namespace farmhashccTest
#if TESTING
static int farmhashccTestResult = farmhashccTest::RunTest();
#else
int main(int argc, char** argv) {
Setup();
cout << "uint32_t expected[] = {\n";
int i = 0;
for ( ; i < kTestSize - 1; i++) {
farmhashccTest::Dump(i * i, i);
}
for ( ; i < kDataSize; i += i / 7) {
farmhashccTest::Dump(0, i);
}
farmhashccTest::Dump(0, kDataSize);
cout << "};\n";
}
#endif
#ifndef FARMHASH_SELF_TEST_GUARD
#define FARMHASH_SELF_TEST_GUARD
#include <cstdio>
#include <iostream>
#include <string.h>
using std::cout;
using std::cerr;
using std::endl;
using std::hex;
static const uint64_t kSeed0 = 1234567;
static const uint64_t kSeed1 = k0;
static const int kDataSize = 1 << 20;
static const int kTestSize = 300;
#define kSeed128 Uint128(kSeed0, kSeed1)
static char data[kDataSize];
static int completed_self_tests = 0;
static int errors = 0;
// Initialize data to pseudorandom values.
void Setup() {
if (completed_self_tests == 0) {
uint64_t a = 9;
uint64_t b = 777;
for (int i = 0; i < kDataSize; i++) {
a += b;
b += a;
a = (a ^ (a >> 41)) * k0;
b = (b ^ (b >> 41)) * k0 + i;
uint8_t u = b >> 37;
memcpy(data + i, &u, 1); // uint8_t -> char
}
}
}
int NoteErrors() {
#define NUM_SELF_TESTS 9
if (++completed_self_tests == NUM_SELF_TESTS)
std::exit(errors > 0);
return errors;
}
template <typename T> inline bool IsNonZero(T x) {
return x != 0;
}
template <> inline bool IsNonZero<uint128_t>(uint128_t x) {
return x != Uint128(0, 0);
}
#endif // FARMHASH_SELF_TEST_GUARD
namespace farmhashmkTest {
uint32_t CreateSeed(int offset, int salt) {
uint32_t h = static_cast<uint32_t>(salt & 0xffffffff);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h += static_cast<uint32_t>(offset & 0xffffffff);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
return h;
}
#undef SEED
#undef SEED1
#undef SEED0
#define SEED CreateSeed(offset, -1)
#define SEED0 CreateSeed(offset, 0)
#define SEED1 CreateSeed(offset, 1)
#undef TESTING
#define TESTING 1
#if TESTING
uint32_t expected[] = {
4223616069u,
3696677242u,
4081014168u,
2576519988u,
2212771159u,
1112731063u,
1020067935u,
3955445564u,
1451961420u,
653440099u,
31917516u,
2957164615u,
2590087362u,
3879448744u,
176305566u,
2447367541u,
1359016305u,
3363804638u,
1117290165u,
1062549743u,
2437877004u,
1894455839u,
673206794u,
3486923651u,
3269862919u,
2303349487u,
1380660650u,
595525107u,
1525325287u,
2025609358u,
176408838u,
1592885012u,
864896482u,
2101378090u,
3489229104u,
2118965695u,
581644891u,
2718789079u,
631613207u,
4228658372u,
3867875546u,
3531368319u,
3804516756u,
3317755099u,
1619744564u,
2884717286u,
1088213445u,
2667691076u,
3727873235u,
2330406762u,
3616470388u,
967660719u,
4148162586u,
315219121u,
673084328u,
3047602355u,
1598963653u,
1267826661u,
2117362589u,
2861192253u,
1823625377u,
1380350078u,
1641748342u,
1176094482u,
269384321u,
2178982315u,
3480237248u,
2660755208u,
1850544433u,
3429699438u,
1262819303u,
640556464u,
2421125401u,
2188368608u,
2612932825u,
1474432581u,
173790449u,
2124882189u,
831272654u,
622960146u,
4238751051u,
3250317967u,
2120810248u,
1948231495u,
1389029321u,
2200398357u,
2134232963u,
2948072329u,
617717625u,
681164587u,
114859387u,
430545646u,
57239089u,
3163338012u,
3482496399u,
557662576u,
1102441413u,
2670159360u,
991116729u,
846014240u,
4233741566u,
1802317242u,
3129528802u,
1459456375u,
1305643039u,
3258671612u,
1578285833u,
868590079u,
1631034517u,
1695432937u,
561078856u,
1004115553u,
3086090507u,
3818348650u,
731596645u,
780926790u,
2544205955u,
158479164u,
3983514188u,
2004735250u,
3436218400u,
673684751u,
1463431419u,
2880490219u,
3223748024u,
2218318859u,
1474466194u,
2636437533u,
2206794961u,
140995728u,
1186394086u,
1805716888u,
1640037724u,
3942729099u,
1944727013u,
918951560u,
498666871u,
3486974657u,
2967205462u,
1167253804u,
1884281041u,
2866015002u,
4158319270u,
2627220079u,
3733319624u,
3317092271u,
438323662u,
3195868065u,
3426606709u,
360708338u,
1905491012u,
650004803u,
1351266252u,
3133279000u,
3722811115u,
2722412434u,
918432408u,
3678271248u,
269599647u,
621514057u,
3117077855u,
1545425390u,
2597567410u,
1221437820u,
3493254589u,
102787342u,
918861168u,
348795089u,
3439883229u,
2353641807u,
2209585469u,
4035884492u,
2686995435u,
1649888022u,
3852893848u,
3042700028u,
314103172u,
726977769u,
2489830276u,
2872753660u,
1316214989u,
1488801501u,
1811420390u,
639581627u,
2362837215u,
3634581834u,
3648576802u,
1257314182u,
762118371u,
4268447045u,
730167096u,
755561509u,
882614845u,
3696972894u,
228263661u,
1478636142u,
2767751651u,
1532617116u,
3838657661u,
1944359935u,
1401102137u,
3772933173u,
1050098254u,
1658079354u,
1846025728u,
2204244794u,
2017217424u,
1275162853u,
1429816745u,
2175565479u,
1716109139u,
1187506761u,
2434641075u,
2725597783u,
1795687662u,
1393312782u,
3511565397u,
627885430u,
4145733164u,
2519005353u,
231414775u,
1242015635u,
2760723497u,
2185540568u,
727314436u,
2358790354u,
1186393454u,
4234795645u,
350567813u,
866773875u,
3145590392u,
1158374055u,
3903123687u,
1862119793u,
2204587556u,
4266276976u,
4151548555u,
915250402u,
2874695320u,
2360311410u,
1099212769u,
1271542714u,
3473148363u,
1637325418u,
1807795989u,
2493819794u,
3800917924u,
4001205856u,
2582153621u,
3365872040u,
2890146216u,
2626363824u,
3133351295u,
4046827296u,
3053118771u,
4113026751u,
884356716u,
3828347401u,
10608262u,
830987972u,
1841080500u,
3202717763u,
3561778749u,
1906000052u,
3058284660u,
1432904514u,
2567431677u,
2550162530u,
665557986u,
936887821u,
2101205308u,
4253535847u,
1662043545u,
1253611611u,
2091370094u,
2635077370u,
2602176041u,
3624115809u,
748442714u,
2709749154u,
1023493343u,
860291012u,
3924715584u,
1536436740u,
2551145800u,
2391782865u,
1467705048u,
2583909796u,
3616666170u,
1162857372u,
4228631071u,
1510132376u,
2739165009u,
2656606142u,
3454996358u,
3155038853u,
1022087316u,
100044110u,
494208296u,
2746186477u,
4216782431u,
225448834u,
3728320521u,
335282866u,
3148194874u,
953503703u,
1293353960u,
202372387u,
1326119870u,
4045123735u,
3819994846u,
1629004186u,
1081099186u,
3591584153u,
1670825804u,
3404257979u,
3262192301u,
2572846095u,
3714992543u,
4264142572u,
529616678u,
2882154574u,
3006354178u,
3865969421u,
2007174907u,
308283107u,
2629833703u,
3159124075u,
1146492131u,
494104332u,
493149727u,
1342910585u,
521642387u,
2201695937u,
2517980959u,
2426821287u,
777374655u,
2228189792u,
4027055486u,
228976000u,
3842083468u,
1723920223u,
1192126094u,
787744493u,
2740368380u,
2284153001u,
2773829458u,
442000614u,
387830783u,
2169780670u,
2253144627u,
3532502484u,
1969684059u,
1165351416u,
3055056536u,
3582324253u,
231419363u,
770979865u,
3213983597u,
3690452836u,
935794639u,
3230602762u,
2841762457u,
407598927u,
1164479891u,
3721799696u,
354738136u,
1801566618u,
3206038542u,
2621379981u,
1943487262u,
3534745636u,
1074424589u,
1304517521u,
4133400969u,
2339317978u,
2135116860u,
4180643791u,
2415309340u,
1855926417u,
3418648630u,
1968113037u,
597304222u,
3668824865u,
3810008716u,
3014702569u,
3151212026u,
156057449u,
373134533u,
2068234004u,
191580563u,
3832754488u,
2924104199u,
2026044494u,
4065780435u,
122565840u,
4194985167u,
2744823717u,
2494098735u,
3753793370u,
1885739217u,
2488161225u,
3643797615u,
2653367310u,
2494061477u,
189968132u,
899646597u,
392100396u,
4012318310u,
3855777086u,
3566860954u,
2698574996u,
2414249905u,
1330623339u,
1263222732u,
1277741760u,
2194959402u,
1629656136u,
120494320u,
1072368005u,
1084245077u,
4011372748u,
1366613353u,
3108643228u,
3332219532u,
2114746095u,
3964007334u,
371687128u,
1084813876u,
126459896u,
4292782331u,
321283184u,
398168499u,
3604983506u,
560701543u,
2073961354u,
4240841868u,
4151211362u,
1338986875u,
4093476832u,
2269279497u,
3500846299u,
2510225147u,
598000444u,
1330391422u,
1432533385u,
4171226231u,
426821154u,
2932270996u,
3378981077u,
2217871549u,
1619647984u,
4051608043u,
3180237819u,
12919578u,
1375401767u,
371320427u,
2986640571u,
2336669859u,
3796464715u,
1892383284u,
306814912u,
2125823211u,
1863678891u,
3249703818u,
3840225752u,
281579900u,
264680257u,
4266359110u,
4182229890u,
2239659703u,
3627947372u,
2373929191u,
224082765u,
4053639058u,
1862360303u,
3187739624u,
3392706679u,
948039509u,
817505760u,
1215842393u,
3462222651u,
536021853u,
182346832u,
2731944883u,
2346674384u,
2640961678u,
3446695687u,
2271722179u,
1301069656u,
2803881468u,
2832614405u,
1691544398u,
698756814u,
3980620906u,
3565421410u,
754769376u,
4115923404u,
3909962218u,
2747614077u,
2888289845u,
1016920862u,
2790946178u,
3067070960u,
3173251481u,
1572132982u,
255048203u,
2996538818u,
3405398987u,
136106013u,
3581605228u,
4277437977u,
2147300534u,
3728426265u,
3483629996u,
1478452694u,
20756076u,
2774992067u,
432987927u,
1516771026u,
3511588664u,
2130994978u,
509385406u,
873090347u,
2163904107u,
4192239086u,
2532489989u,
1090772651u,
3910797408u,
3710882132u,
155010959u,
1369823531u,
1599664937u,
4035593587u,
1212746925u,
795822552u,
116689518u,
3674240941u,
1135576664u,
756750261u,
1027431362u,
390555140u,
2228460216u,
1506940482u,
3733857700u,
3048762971u,
2511703196u,
548609887u,
1607354252u,
659053982u,
259884450u,
1793130460u,
4083364495u,
3148555881u,
1764350138u,
2436485683u,
4031563025u,
3261860724u,
2475833430u,
2101726086u,
3191176464u,
2646658847u,
2127042126u,
771316100u,
2115922959u,
3208515045u,
2355437783u,
3621147793u,
1580163615u,
3211555675u,
3299188490u,
191613920u,
466733956u,
2939029038u,
1509152039u,
130591314u,
1892874677u,
1646908044u,
3452406523u,
3998376606u,
1199243832u,
2187108812u,
3189230066u,
4161151481u,
3371454980u,
3681788646u,
180842187u,
3685022399u,
3058749895u,
3250165163u,
2895367943u,
2627101723u,
771755098u,
1332921024u,
3638871848u,
514215135u,
3591227378u,
2300310870u,
3689533503u,
851607114u,
114330368u,
2709027386u,
1743034877u,
1013693860u,
288169008u,
3545190686u,
1052165084u,
3995862307u,
96902755u,
1097819851u,
2645431442u,
2184148618u,
2151206566u,
350979797u,
3467920900u,
421116779u,
1246252u,
4057835428u,
329324407u,
4104482417u,
844624570u,
3306265806u,
3787625025u,
4263241191u,
3251413927u,
2921204431u,
2931915325u,
992134330u,
3986338354u,
1327895216u,
1458363596u,
1480608532u,
728594368u,
3804366693u,
794404223u,
1643240863u,
793417255u,
4167916443u,
2683488959u,
3124925324u,
4184843652u,
3750971752u,
308509829u,
1054550805u,
2797511972u,
4043123412u,
1587158240u,
4050518606u,
3030062190u,
2589912753u,
603440067u,
937013191u,
1071662315u,
2100661456u,
2602005741u,
435516078u,
2260470147u,
1256268350u,
3612035u,
3368856141u,
151516099u,
3081868591u,
3363755681u,
2049963149u,
2885320434u,
84682005u,
2411758308u,
2695174275u,
3099904644u,
1787308684u,
1132379308u,
564634346u,
510236510u,
2804443681u,
3931864252u,
2064427949u,
1893979229u,
2916544974u,
1885887717u,
2978018250u,
494192125u,
2642662373u,
901112508u,
636035003u,
1658643797u,
172746975u,
517504890u,
3440019372u,
4144498044u,
1854755456u,
3672653905u,
4176892856u,
382159097u,
282871690u,
3629300472u,
2500754041u,
1677659759u,
1067175061u,
161654075u,
1672575536u,
346120493u,
2730229631u,
203466442u,
1244549529u,
199761971u,
2744895408u,
3195315331u,
2124618519u,
3261045496u,
985339699u,
3385585455u,
1545740710u,
3636652160u,
2167020081u,
1207897204u,
28752417u,
2895834146u,
3640845375u,
3750293073u,
548997850u,
4207814196u,
4183030708u,
2462810989u,
3929965401u,
};
// Return false only if offset is -1 and a spot check of 3 hashes all yield 0.
bool Test(int offset, int len = 0) {
#undef Check
#undef IsAlive
#define Check(x) do { \
const uint32_t actual = (x), e = expected[index++]; \
bool ok = actual == e; \
if (!ok) { \
cerr << "expected " << hex << e << " but got " << actual << endl; \
++errors; \
} \
assert(ok); \
} while (0)
#define IsAlive(x) do { alive += IsNonZero(x); } while (0)
// After the following line is where the uses of "Check" and such will go.
static int index = 0;
if (offset == -1) { int alive = 0; IsAlive(farmhashmk::Hash32WithSeed(data, len++, SEED)); IsAlive(farmhashmk::Hash32(data, len++)); IsAlive(farmhashmk::Hash32(data, len++)); len -= 3; return alive > 0; }
Check(farmhashmk::Hash32WithSeed(data + offset, len, SEED));
Check(farmhashmk::Hash32(data + offset, len));
return true;
#undef Check
#undef IsAlive
}
int RunTest() {
Setup();
int i = 0;
cout << "Running farmhashmkTest";
if (!Test(-1)) {
cout << "... Unavailable\n";
return NoteErrors();
}
// Good. The function is attempting to hash, so run the full test.
int errors_prior_to_test = errors;
for ( ; i < kTestSize - 1; i++) {
Test(i * i, i);
}
for ( ; i < kDataSize; i += i / 7) {
Test(0, i);
}
Test(0, kDataSize);
cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n");
return NoteErrors();
}
#else
// After the following line is where the code to print hash codes will go.
void Dump(int offset, int len) {
cout << farmhashmk::Hash32WithSeed(data + offset, len, SEED) << "u," << endl;
cout << farmhashmk::Hash32(data + offset, len) << "u," << endl;
}
#endif
#undef SEED
#undef SEED1
#undef SEED0
} // namespace farmhashmkTest
#if TESTING
static int farmhashmkTestResult = farmhashmkTest::RunTest();
#else
int main(int argc, char** argv) {
Setup();
cout << "uint32_t expected[] = {\n";
int i = 0;
for ( ; i < kTestSize - 1; i++) {
farmhashmkTest::Dump(i * i, i);
}
for ( ; i < kDataSize; i += i / 7) {
farmhashmkTest::Dump(0, i);
}
farmhashmkTest::Dump(0, kDataSize);
cout << "};\n";
}
#endif
#ifndef FARMHASH_SELF_TEST_GUARD
#define FARMHASH_SELF_TEST_GUARD
#include <cstdio>
#include <iostream>
#include <string.h>
using std::cout;
using std::cerr;
using std::endl;
using std::hex;
static const uint64_t kSeed0 = 1234567;
static const uint64_t kSeed1 = k0;
static const int kDataSize = 1 << 20;
static const int kTestSize = 300;
#define kSeed128 Uint128(kSeed0, kSeed1)
static char data[kDataSize];
static int completed_self_tests = 0;
static int errors = 0;
// Initialize data to pseudorandom values.
void Setup() {
if (completed_self_tests == 0) {
uint64_t a = 9;
uint64_t b = 777;
for (int i = 0; i < kDataSize; i++) {
a += b;
b += a;
a = (a ^ (a >> 41)) * k0;
b = (b ^ (b >> 41)) * k0 + i;
uint8_t u = b >> 37;
memcpy(data + i, &u, 1); // uint8_t -> char
}
}
}
int NoteErrors() {
#define NUM_SELF_TESTS 9
if (++completed_self_tests == NUM_SELF_TESTS)
std::exit(errors > 0);
return errors;
}
template <typename T> inline bool IsNonZero(T x) {
return x != 0;
}
template <> inline bool IsNonZero<uint128_t>(uint128_t x) {
return x != Uint128(0, 0);
}
#endif // FARMHASH_SELF_TEST_GUARD
namespace farmhashnaTest {
uint32_t CreateSeed(int offset, int salt) {
uint32_t h = static_cast<uint32_t>(salt & 0xffffffff);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h += static_cast<uint32_t>(offset & 0xffffffff);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
return h;
}
#undef SEED
#undef SEED1
#undef SEED0
#define SEED CreateSeed(offset, -1)
#define SEED0 CreateSeed(offset, 0)
#define SEED1 CreateSeed(offset, 1)
#undef TESTING
#define TESTING 1
#if TESTING
uint32_t expected[] = {
1140953930u, 861465670u,
3277735313u, 2681724312u,
2598464059u, 797982799u,
890626835u, 800175912u,
2603993599u, 921001710u,
1410420968u, 2134990486u,
3283896453u, 1867689945u,
2914424215u, 2244477846u,
255297188u, 2992121793u,
1110588164u, 4186314283u,
161451183u, 3943596029u,
4019337850u, 452431531u,
283198166u, 2741341286u,
3379021470u, 2557197665u,
299850021u, 2532580744u,
452473466u, 1706958772u,
1298374911u, 3099673830u,
2199864459u, 3696623795u,
236935126u, 2976578695u,
4055299123u, 3281581178u,
1053458494u, 1882212500u,
2305012065u, 2169731866u,
3456121707u, 275903667u,
458884671u, 3033004529u,
3058973506u, 2379411653u,
1898235244u, 1402319660u,
2700149065u, 2699376854u,
147814787u, 720739346u,
2433714046u, 4222949502u,
4220361840u, 1712034059u,
3425469811u, 3690733394u,
4148372108u, 1330324210u,
594028478u, 2921867846u,
1635026870u, 192883107u,
780716741u, 1728752234u,
3280331829u, 326029180u,
3969463346u, 1436364519u,
393215742u, 3349570000u,
3824583307u, 1612122221u,
2859809759u, 3808705738u,
1379537552u, 1646032583u,
2233466664u, 1432476832u,
4023053163u, 2650381482u,
2052294713u, 3552092450u,
1628777059u, 1499109081u,
3476440786u, 3829307897u,
2960536756u, 1554038301u,
1145519619u, 3190844552u,
2902102606u, 3600725550u,
237495366u, 540224401u,
65721842u, 489963606u,
1448662590u, 397635823u,
1596489240u, 1562872448u,
1790705123u, 2128624475u,
180854224u, 2604346966u,
1435705557u, 1262831810u,
155445229u, 1672724608u,
1669465176u, 1341975128u,
663607706u, 2077310004u,
3610042449u, 1911523866u,
1043692997u, 1454396064u,
2563776023u, 294527927u,
1099072299u, 1389770549u,
703505868u, 678706990u,
2952353448u, 2026137563u,
3603803785u, 629449419u,
1933894405u, 3043213226u,
226132789u, 2489287368u,
1552847036u, 645684964u,
3828089804u, 3632594520u,
187883449u, 230403464u,
3151491850u, 3272648435u,
3729087873u, 1303930448u,
2002861219u, 165370827u,
916494250u, 1230085527u,
3103338579u, 3064290191u,
3807265751u, 3628174014u,
231181488u, 851743255u,
2295806711u, 1781190011u,
2988893883u, 1554380634u,
1142264800u, 3667013118u,
1968445277u, 315203929u,
2638023604u, 2290487377u,
732137533u, 1909203251u,
440398219u, 1891630171u,
1380301172u, 1498556724u,
4072067757u, 4165088768u,
4204318635u, 441430649u,
3931792696u, 197618179u,
956300927u, 914413116u,
3010839769u, 2837339569u,
2148126371u, 1913303225u,
3074915312u, 3117299654u,
4139181436u, 2993479124u,
3178848746u, 1357272220u,
1438494951u, 507436733u,
667183474u, 2084369203u,
3854939912u, 1413396341u,
126024219u, 146044391u,
1016656857u, 3022024459u,
3254014218u, 429095991u,
165589978u, 1578546616u,
985653208u, 1718653828u,
623071693u, 366414107u,
249776086u, 1207522198u,
3047342438u, 2991127487u,
3120876698u, 1684583131u,
46987739u, 1157614300u,
863214540u, 1087193030u,
199124911u, 520792961u,
3614377032u, 586863115u,
3331828431u, 1013201099u,
1716848157u, 4033596884u,
1164298657u, 4140791139u,
1146169032u, 1434258493u,
3824360466u, 3242407770u,
3725511003u, 232064808u,
872586426u, 762243036u,
2736953692u, 816692935u,
512845449u, 3748861010u,
2266795890u, 3781899767u,
4290630595u, 517646945u,
22638523u, 648000590u,
959214578u, 558910384u,
1283799121u, 3047062993u,
1024246061u, 4027776454u,
3544509313u, 622325861u,
834785312u, 382936554u,
411505255u, 1973395102u,
1825135056u, 2725923798u,
580988377u, 2826990641u,
3474970689u, 1029055034u,
812546227u, 2506885666u,
2584372201u, 1758123094u,
589567754u, 325737734u,
345313518u, 2022370576u,
3886113119u, 3338548567u,
257578986u, 3698087965u,
1776047957u, 1771384107u,
3604937815u, 3198590202u,
2305332220u, 191910725u,
4232136669u, 427759438u,
4244322689u, 542201663u,
3315355162u, 2135941665u,
556609672u, 45845311u,
1175961330u, 3948351189u,
23075771u, 3252374102u,
1634635545u, 4151937410u,
713127376u, 1467786451u,
663013031u, 3444053918u,
2638154051u, 810082938u,
3077742128u, 1062268187u,
2115441882u, 4081398201u,
3735739145u, 2794294783u,
2335576331u, 2560479831u,
1379288194u, 4225182569u,
2442302747u, 3948961926u,
3958366652u, 3067277639u,
3667516477u, 1709989541u,
1516711748u, 2339636583u,
4188504038u, 59581167u,
2725013602u, 3639843023u,
2658147000u, 2643979752u,
3758739543u, 4189944477u,
2470483982u, 877580602u,
2995362413u, 118817200u,
3252925478u, 2062343506u,
3981838403u, 3762572073u,
1231633714u, 4168280671u,
2931588131u, 3284356565u,
1129162571u, 732225574u,
4173605289u, 1407328702u,
1677744031u, 3532596884u,
3232041815u, 1652884780u,
2256541290u, 3459463480u,
3740979556u, 259034107u,
2227121257u, 1426140634u,
3606709555u, 3424793077u,
315836068u, 3200749877u,
1386256573u, 24035717u,
2982018998u, 1811050648u,
234531934u, 1115203611u,
1598686658u, 3146815575u,
1603559457u, 323296368u,
2632963283u, 1778459926u,
739944537u, 579625482u,
3486330348u, 492621815u,
1231665285u, 2457048126u,
3903349120u, 389846205u,
3355404249u, 3275550588u,
1052645068u, 862072556u,
2834153464u, 1481069623u,
2657392572u, 4279236653u,
1688445808u, 701920051u,
3740748788u, 3388062747u,
1873358321u, 2152785640u,
883382081u, 1005815394u,
1020177209u, 734239551u,
2371453141u, 100326520u,
3488500412u, 1279682138u,
2610427744u, 49703572u,
3026361211u, 605900428u,
302392721u, 2509302188u,
1416453607u, 2815915291u,
1862819968u, 519710058u,
2450888314u, 4017598378u,
937074653u, 3035635454u,
1590230729u, 3268013438u,
2710029305u, 12886044u,
3711259084u, 2627383582u,
3895772404u, 648534979u,
260307902u, 855990313u,
3669691805u, 263366740u,
2938543471u, 414331688u,
3080542944u, 3405007814u,
3565059103u, 1190977418u,
390836981u, 1606450012u,
2649808239u, 2514169310u,
2747519432u, 4129538640u,
1721522849u, 492099164u,
792990594u, 3625507637u,
2271095827u, 2993032712u,
2302363854u, 4013112951u,
1111617969u, 2183845740u,
795918276u, 1116991810u,
3110898804u, 3963062126u,
2737064702u, 462795667u,
937372240u, 1343017609u,
1091041189u, 2790555455u,
277024217u, 25485284u,
1166522068u, 1623631848u,
241727183u, 2836158787u,
3112996740u, 573836428u,
2721658101u, 1937681565u,
4175169209u, 3190765433u,
1970000788u, 1668258120u,
114616703u, 954762543u,
199237753u, 4094644498u,
2522281978u, 732086117u,
1756889687u, 2936126607u,
2437031370u, 4103143808u,
3883389541u, 3171090854u,
2483004780u, 1927385370u,
2360538162u, 2740855009u,
4241185118u, 1492209542u,
1672737098u, 2148675559u,
1789864670u, 2434313103u,
2319172611u, 2760941207u,
2636210123u, 1338083267u,
1128080590u, 822806371u,
1199583556u, 314727461u,
1335160250u, 2084630531u,
1156261526u, 316766066u,
112090465u, 3129033323u,
2746885618u, 636616055u,
2582210744u, 1721064910u,
3468394263u, 470463518u,
2076016059u, 408721884u,
2121041886u, 378460278u,
1915948002u, 357324860u,
2301682622u, 2691859523u,
1869756364u, 2429314418u,
2193146527u, 1185564327u,
2614088922u, 1975527044u,
919067651u, 2855948894u,
3662539576u, 1943802836u,
3529473373u, 1490330107u,
366036094u, 3384241033u,
4276268604u, 448403661u,
4271796078u, 1910401882u,
3077107698u, 299427366u,
2035665349u, 3201262636u,
3738454258u, 2554452696u,
3588997135u, 3363895827u,
1267505995u, 1852004679u,
2237827073u, 2803250686u,
3468044908u, 2143572850u,
1728158656u, 1022551180u,
1996680960u, 839529273u,
2400647871u, 2201096054u,
3606433628u, 2597259793u,
3544595875u, 3909443124u,
819278607u, 3447346709u,
806136613u, 2711436388u,
3656063205u, 837475154u,
694525336u, 4070212073u,
4011303412u, 1068395209u,
438095290u, 484603494u,
2673730227u, 737767009u,
642310823u, 3914002299u,
308425103u, 268427550u,
1334387085u, 4069797497u,
4280783219u, 2914011058u,
4243643405u, 2849988118u,
2504230175u, 1817156623u,
2804200483u, 3406991497u,
2948254999u, 2102063419u,
1071272117u, 514889942u,
571972433u, 1246595599u,
1735616066u, 1539151988u,
1230831543u, 277987182u,
4269526481u, 991511607u,
95237878u, 2005032160u,
1291113144u, 626619670u,
3560835907u, 164940926u,
1433635018u, 116647396u,
3039097112u, 2868163232u,
1141645918u, 1764165478u,
881378302u, 2159170082u,
2953647681u, 1011320066u,
184856151u, 1723308975u,
336034862u, 2017579106u,
1476681709u, 147523618u,
3896252223u, 2264728166u,
944743644u, 1694443528u,
2690700128u, 1947321519u,
735478508u, 4058183171u,
260177668u, 505662155u,
2391691262u, 1920739747u,
3216960415u, 1898176786u,
3722741628u, 1511077569u,
449636564u, 983350414u,
2580237367u, 2055059789u,
1103819072u, 2089123665u,
3873755579u, 2718467458u,
3124338704u, 3204250304u,
2475035432u, 1120017626u,
3873758287u, 1982999824u,
2950794582u, 780634378u,
2842141483u, 4029205195u,
1656892865u, 3330993377u,
80890710u, 1953796601u,
3873078673u, 136118734u,
2317676604u, 4199091610u,
1864448181u, 3063437608u,
1699452298u, 1403506686u,
1513069466u, 2348491299u,
4273657745u, 4055855649u,
1805475756u, 2562064338u,
973124563u, 4197091358u,
172861513u, 2858726767u,
4271866024u, 3071338162u,
3590386266u, 2328277259u,
1096050703u, 1189614342u,
459509140u, 771592405u,
817999971u, 3740825152u,
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1352868568u, 1898561846u,
2508994984u, 3177750780u,
4217929592u, 400784472u,
80090315u, 3564414786u,
3841585648u, 3379293868u,
160353261u, 2413172925u,
2378499279u, 673436726u,
1505702418u, 1330977363u,
1853298225u, 3201741245u,
2135714208u, 4069554166u,
3715612384u, 3692488887u,
3680311316u, 4274382900u,
914186796u, 2264886523u,
3869634032u, 1254199592u,
1131020455u, 194781179u,
429923922u, 2763792336u,
2052895198u, 3997373194u,
3440090658u, 2165746386u,
1575500242u, 3463310191u,
2064974716u, 3779513671u,
3106421434u, 880320527u,
3281914119u, 286569042u,
3909096631u, 122359727u,
1429837716u, 252230074u,
4111461225u, 762273136u,
93658514u, 2766407143u,
3623657004u, 3869801679u,
3925695921u, 2390397316u,
2499025338u, 2741806539u,
2507199021u, 1659221866u,
361292116u, 4048761557u,
3797133396u, 1517903247u,
3121647246u, 3884308578u,
1697201500u, 1558800262u,
4150812360u, 3161302278u,
2610217849u, 641564641u,
183814518u, 2075245419u,
611996508u, 2223461433u,
329123979u, 121860586u,
860985829u, 1137889144u,
4018949439u, 2904348960u,
947795261u, 1992594155u,
4255427501u, 2281583851u,
2892637604u, 1478186924u,
3050771207u, 2767035539u,
373510582u, 1963520320u,
3763848370u, 3756817798u,
627269409u, 1806905031u,
1814444610u, 3646665053u,
1822693920u, 278515794u,
584050483u, 4142579188u,
2149745808u, 3193071606u,
1179706341u, 2693495182u,
3259749808u, 644172091u,
880509048u, 3340630542u,
3365160815u, 2384445068u,
3053081915u, 2840648309u,
1986990122u, 1084703471u,
2370410550u, 1627743573u,
2244943480u, 4057483496u,
2611595995u, 2470013639u,
4024732359u, 3987190386u,
873421687u, 2447660175u,
3226583022u, 767655877u,
2528024413u, 1962070688u,
1233635843u, 2163464207u,
659054446u, 854207134u,
258410943u, 4197831420u,
2515400215u, 3100476924u,
1961549594u, 2219491151u,
3997658851u, 163850514u,
470325051u, 2598261204u,
3052145580u, 59836528u,
1376188597u, 966733415u,
850667549u, 3622479237u,
1083731990u, 1525777459u,
4005126532u, 1428155540u,
2781907007u, 943739431u,
1493961005u, 2839096988u,
2000057832u, 1941829603u,
1901484772u, 939810041u,
3377407371u, 3090115837u,
3310840540u, 2068409688u,
3261383939u, 2212130277u,
2594774045u, 2912652418u,
4179816101u, 3534504531u,
3349254805u, 2796552902u,
1385421283u, 4259908631u,
3714780837u, 3070073945u,
3372846298u, 3835884044u,
3047965714u, 3009018735u,
744091167u, 1861124263u,
2764936304u, 1338171648u,
4222019554u, 1395200692u,
1371426007u, 3338031581u,
2525665319u, 4196233786u,
2332743921u, 1474702008u,
2274266301u, 4255175517u,
2290169528u, 1793910997u,
2188254024u, 354202001u,
3864458796u, 4280290498u,
1554419340u, 1733094688u,
2010552302u, 1561807039u,
664313606u, 2548990879u,
1084699349u, 3233936866u,
973895284u, 2386881969u,
1831995860u, 2961465052u,
1428704144u, 3269904970u,
231648253u, 2602483763u,
4125013173u, 3319187387u,
3347011944u, 1892898231u,
4019114049u, 868879116u,
4085937045u, 2378411019u,
1072588531u, 3547435717u,
2208070766u, 1069899078u,
3142980597u, 2337088907u,
1593338562u, 919414554u,
688077849u, 3625708135u,
1472447348u, 1947711896u,
3953006207u, 877438080u,
845995820u, 3150361443u,
3053496713u, 2484577841u,
224271045u, 2914958001u,
2682612949u, 806655563u,
2436224507u, 1907729235u,
2920583824u, 1251814062u,
2070814520u, 4034325578u,
497847539u, 2714317144u,
385182008u, 640855184u,
1327075087u, 1062468773u,
1757405994u, 1374270191u,
4263183176u, 3041193150u,
1037871524u, 3633173991u,
4231821821u, 2830131945u,
3505072908u, 2830570613u,
4195208715u, 575398021u,
3992840257u, 3691788221u,
1949847968u, 2999344380u,
3183782163u, 3723754342u,
759716128u, 3284107364u,
1714496583u, 15918244u,
820509475u, 2553936299u,
2201876606u, 4237151697u,
2605688266u, 3253705097u,
1008333207u, 712158730u,
1722280252u, 1933868287u,
4152736859u, 2097020806u,
584426382u, 2836501956u,
2522777566u, 1996172430u,
2122199776u, 1069285218u,
1474209360u, 690831894u,
107482532u, 3695525410u,
670591796u, 768977505u,
2412057331u, 3647886687u,
3110327607u, 1072658422u,
379861934u, 1557579480u,
4124127129u, 2271365865u,
3880613089u, 739218494u,
547346027u, 388559045u,
3147335977u, 176230425u,
3094853730u, 2554321205u,
1495176194u, 4093461535u,
3521297827u, 4108148413u,
1913727929u, 1177947623u,
1911655402u, 1053371241u,
3265708874u, 1266515850u,
1045540427u, 3194420196u,
3717104621u, 1144474110u,
1464392345u, 52070157u,
4144237690u, 3350490823u,
4166253320u, 2747410691u,
};
// Return false only if offset is -1 and a spot check of 3 hashes all yield 0.
bool Test(int offset, int len = 0) {
#undef Check
#undef IsAlive
#define Check(x) do { \
const uint32_t actual = (x), e = expected[index++]; \
bool ok = actual == e; \
if (!ok) { \
cerr << "expected " << hex << e << " but got " << actual << endl; \
++errors; \
} \
assert(ok); \
} while (0)
#define IsAlive(x) do { alive += IsNonZero(x); } while (0)
// After the following line is where the uses of "Check" and such will go.
static int index = 0;
if (offset == -1) { int alive = 0; { uint64_t h = farmhashna::Hash64WithSeeds(data, len++, SEED0, SEED1); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashna::Hash64WithSeed(data, len++, SEED); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashna::Hash64(data, len++); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } len -= 3; return alive > 0; }
{ uint64_t h = farmhashna::Hash64WithSeeds(data + offset, len, SEED0, SEED1); Check(h >> 32); Check((h << 32) >> 32); }
{ uint64_t h = farmhashna::Hash64WithSeed(data + offset, len, SEED); Check(h >> 32); Check((h << 32) >> 32); }
{ uint64_t h = farmhashna::Hash64(data + offset, len); Check(h >> 32); Check((h << 32) >> 32); }
return true;
#undef Check
#undef IsAlive
}
int RunTest() {
Setup();
int i = 0;
cout << "Running farmhashnaTest";
if (!Test(-1)) {
cout << "... Unavailable\n";
return NoteErrors();
}
// Good. The function is attempting to hash, so run the full test.
int errors_prior_to_test = errors;
for ( ; i < kTestSize - 1; i++) {
Test(i * i, i);
}
for ( ; i < kDataSize; i += i / 7) {
Test(0, i);
}
Test(0, kDataSize);
cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n");
return NoteErrors();
}
#else
// After the following line is where the code to print hash codes will go.
void Dump(int offset, int len) {
{ uint64_t h = farmhashna::Hash64WithSeeds(data + offset, len, SEED0, SEED1); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; }
{ uint64_t h = farmhashna::Hash64WithSeed(data + offset, len, SEED); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; }
{ uint64_t h = farmhashna::Hash64(data + offset, len); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; }
}
#endif
#undef SEED
#undef SEED1
#undef SEED0
} // namespace farmhashnaTest
#if TESTING
static int farmhashnaTestResult = farmhashnaTest::RunTest();
#else
int main(int argc, char** argv) {
Setup();
cout << "uint32_t expected[] = {\n";
int i = 0;
for ( ; i < kTestSize - 1; i++) {
farmhashnaTest::Dump(i * i, i);
}
for ( ; i < kDataSize; i += i / 7) {
farmhashnaTest::Dump(0, i);
}
farmhashnaTest::Dump(0, kDataSize);
cout << "};\n";
}
#endif
#ifndef FARMHASH_SELF_TEST_GUARD
#define FARMHASH_SELF_TEST_GUARD
#include <cstdio>
#include <iostream>
#include <string.h>
using std::cout;
using std::cerr;
using std::endl;
using std::hex;
static const uint64_t kSeed0 = 1234567;
static const uint64_t kSeed1 = k0;
static const int kDataSize = 1 << 20;
static const int kTestSize = 300;
#define kSeed128 Uint128(kSeed0, kSeed1)
static char data[kDataSize];
static int completed_self_tests = 0;
static int errors = 0;
// Initialize data to pseudorandom values.
void Setup() {
if (completed_self_tests == 0) {
uint64_t a = 9;
uint64_t b = 777;
for (int i = 0; i < kDataSize; i++) {
a += b;
b += a;
a = (a ^ (a >> 41)) * k0;
b = (b ^ (b >> 41)) * k0 + i;
uint8_t u = b >> 37;
memcpy(data + i, &u, 1); // uint8_t -> char
}
}
}
int NoteErrors() {
#define NUM_SELF_TESTS 9
if (++completed_self_tests == NUM_SELF_TESTS)
std::exit(errors > 0);
return errors;
}
template <typename T> inline bool IsNonZero(T x) {
return x != 0;
}
template <> inline bool IsNonZero<uint128_t>(uint128_t x) {
return x != Uint128(0, 0);
}
#endif // FARMHASH_SELF_TEST_GUARD
namespace farmhashntTest {
uint32_t CreateSeed(int offset, int salt) {
uint32_t h = static_cast<uint32_t>(salt & 0xffffffff);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h += static_cast<uint32_t>(offset & 0xffffffff);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
return h;
}
#undef SEED
#undef SEED1
#undef SEED0
#define SEED CreateSeed(offset, -1)
#define SEED0 CreateSeed(offset, 0)
#define SEED1 CreateSeed(offset, 1)
#undef TESTING
#define TESTING 1
#if TESTING
uint32_t expected[] = {
2681724312u,
797982799u,
921001710u,
2134990486u,
2244477846u,
2992121793u,
3943596029u,
452431531u,
2557197665u,
2532580744u,
3099673830u,
3696623795u,
3281581178u,
1882212500u,
275903667u,
3033004529u,
1402319660u,
2699376854u,
4222949502u,
1712034059u,
1330324210u,
2921867846u,
1728752234u,
326029180u,
3349570000u,
1612122221u,
1646032583u,
1432476832u,
3552092450u,
1499109081u,
1554038301u,
3190844552u,
540224401u,
489963606u,
1562872448u,
2128624475u,
1262831810u,
1672724608u,
2077310004u,
1911523866u,
294527927u,
1389770549u,
2026137563u,
629449419u,
2489287368u,
645684964u,
230403464u,
3272648435u,
165370827u,
1230085527u,
3628174014u,
851743255u,
1554380634u,
3667013118u,
2290487377u,
1909203251u,
1498556724u,
4165088768u,
197618179u,
914413116u,
1913303225u,
3117299654u,
1357272220u,
507436733u,
1413396341u,
146044391u,
429095991u,
3056862311u,
366414107u,
2293458109u,
1684583131u,
1170404994u,
520792961u,
1577421232u,
4033596884u,
4229339322u,
3242407770u,
2649785113u,
816692935u,
3555213933u,
517646945u,
2180594090u,
3047062993u,
2391606125u,
382936554u,
788479970u,
2826990641u,
3167748333u,
1758123094u,
389974094u,
3338548567u,
2583576230u,
3198590202u,
4155628142u,
542201663u,
2856634168u,
3948351189u,
4194218315u,
1467786451u,
2743592929u,
1062268187u,
3810665822u,
2560479831u,
997658837u,
3067277639u,
1211737169u,
59581167u,
1389679610u,
4189944477u,
100876854u,
2062343506u,
3088828656u,
3284356565u,
3130054947u,
3532596884u,
3887208531u,
259034107u,
3233195759u,
3200749877u,
760633989u,
1115203611u,
1516407838u,
1778459926u,
2146672889u,
2457048126u,
2217471853u,
862072556u,
3745267835u,
701920051u,
581695350u,
1410111809u,
3326135446u,
2187968410u,
4267859263u,
479241367u,
2868987960u,
704325635u,
1418509533u,
735688735u,
3283299459u,
813690332u,
1439630796u,
3195309868u,
1616408198u,
3254795114u,
2799925823u,
3929484338u,
1798536177u,
4205965408u,
1499475160u,
4247675634u,
3779953975u,
785893184u,
2778575413u,
1160134629u,
823113169u,
4116162021u,
4167766971u,
2487440590u,
4004655503u,
4044418876u,
1462554406u,
2011102035u,
4265993528u,
576405853u,
4038839101u,
2425317635u,
1401013391u,
3062418115u,
3167030094u,
2602636307u,
4264167741u,
4017058800u,
1029665228u,
4036354071u,
2670703363u,
688472265u,
1054670286u,
338058159u,
1539305024u,
146827036u,
4060134777u,
2502815838u,
1603444633u,
2448966429u,
3891353218u,
1082330589u,
201837927u,
2848283092u,
883849006u,
1982110346u,
541496720u,
133643215u,
3847827123u,
4015671361u,
2849988118u,
3452457457u,
2102063419u,
3281002516u,
1539151988u,
1147951686u,
2005032160u,
2415262714u,
116647396u,
1029284767u,
2159170082u,
1919171906u,
2017579106u,
2473524405u,
1694443528u,
3671562289u,
505662155u,
1019936943u,
1511077569u,
773792826u,
2089123665u,
484732447u,
1120017626u,
2809286837u,
4029205195u,
1097806406u,
136118734u,
4017075736u,
1403506686u,
1516736273u,
2562064338u,
2984955003u,
3071338162u,
1923531348u,
771592405u,
2586632018u,
4032960199u,
2687561076u,
308584855u,
1692079268u,
2565680167u,
3674576684u,
3770488806u,
69201295u,
1255084262u,
3593730713u,
54945052u,
1939595371u,
2432427547u,
2295501078u,
1280920000u,
82177963u,
1121403845u,
2889101923u,
713121337u,
1747052377u,
927011680u,
4142246789u,
1958963937u,
1636932722u,
4075249328u,
2025886508u,
3026358429u,
1845587644u,
3615577014u,
1363253259u,
3087190425u,
341851980u,
2515339233u,
1276595523u,
460237542u,
4198897105u,
2069753399u,
4278599955u,
356742959u,
3735275001u,
1750561299u,
668829411u,
3384018814u,
4233785523u,
451656820u,
107312677u,
2390172694u,
1216645846u,
164402616u,
1689811113u,
1767810825u,
1397772514u,
3323383489u,
2986430557u,
207428029u,
2260498180u,
2360400900u,
1263709570u,
1377764574u,
4252610345u,
1099809675u,
2776960536u,
3542220540u,
3752806924u,
337070226u,
3267551635u,
1306761320u,
2220373824u,
4109252858u,
896322512u,
1788337208u,
1336556841u,
2911512007u,
3712582785u,
3071359622u,
2561488770u,
3898950547u,
536047554u,
2040551642u,
3528794619u,
3565689036u,
1197100813u,
1864569342u,
3329594980u,
490608221u,
1174785921u,
3287246572u,
2163330264u,
500120236u,
2520062970u,
1561519055u,
4042710240u,
2774151984u,
3160666939u,
96459446u,
1878067032u,
4237425634u,
2952135524u,
4100839753u,
1265237690u,
4246879223u,
834830418u,
3476334357u,
4277111759u,
2511026735u,
3065234219u,
556796152u,
198182691u,
2913077464u,
1535115487u,
4046477658u,
140762681u,
990407433u,
2198985327u,
2926590471u,
559702706u,
82077489u,
1096697687u,
4190838199u,
3046872820u,
1583801700u,
2185339100u,
3912423882u,
3703603898u,
2540185277u,
1446869792u,
4051584612u,
2719373510u,
1675560450u,
1996164093u,
405251683u,
2864244470u,
4071581802u,
2028708916u,
803575837u,
557660441u,
3841480082u,
255451671u,
779434428u,
3452203069u,
2285701422u,
1568745354u,
823305654u,
3184047862u,
4159715581u,
3160134214u,
3198900547u,
1566527339u,
4194096960u,
1496132623u,
1719108984u,
2584236470u,
531310503u,
3456882941u,
3382290593u,
467441309u,
3241407531u,
2540270567u,
1397502982u,
3348545480u,
811750340u,
1017047954u,
2540585554u,
3531646869u,
943914610u,
1903578924u,
1911188923u,
241574049u,
3181425568u,
3529565564u,
240953857u,
2964595704u,
3828377737u,
4260564140u,
4262383425u,
383233885u,
4051263539u,
919677938u,
1683612329u,
4204155962u,
2283918569u,
4153726847u,
350160869u,
1387233546u,
1891558063u,
740563169u,
330624974u,
2948665536u,
376390582u,
3799363969u,
3187805406u,
2263421398u,
1928519266u,
2746577402u,
2108753646u,
768287270u,
2247006571u,
212490675u,
917121602u,
2549835613u,
2864033668u,
3738062408u,
2006922227u,
2616619070u,
3449066284u,
431292293u,
786322314u,
1415970351u,
3263135197u,
2954777083u,
3206261120u,
2287507921u,
1781944746u,
4081586725u,
1109175923u,
1813855658u,
1129462471u,
1037031473u,
3389003793u,
3122687303u,
1164309901u,
3193251135u,
3626554867u,
3071568023u,
3656006011u,
1167681812u,
3155218919u,
2704165015u,
1854985978u,
1712976649u,
878608872u,
4155949943u,
3163786257u,
1626463554u,
1256485167u,
582664250u,
2083771672u,
804336148u,
2770847216u,
1674051445u,
3992583643u,
2966108111u,
900741486u,
4014551783u,
300318232u,
3517585534u,
542270815u,
760762191u,
1216399252u,
643179562u,
3652676161u,
2990167340u,
3262252593u,
2134299399u,
411263051u,
1342880802u,
1967599860u,
853593042u,
2682611693u,
850464484u,
3286110054u,
3842907484u,
3623364733u,
3693536939u,
1615375832u,
2318423400u,
4145497671u,
1728968857u,
2686506989u,
1502282913u,
2151665147u,
3651607391u,
1178454681u,
4146839064u,
2601416506u,
1448097974u,
238887261u,
4093725287u,
2367569534u,
679517009u,
3539886328u,
3086277222u,
1390394371u,
119173722u,
1766260771u,
751439914u,
215917713u,
2656990891u,
1570750352u,
3533987737u,
3576119563u,
963183826u,
3796810515u,
136547246u,
2592925324u,
427154472u,
1228758574u,
1464255968u,
2984611177u,
2001585786u,
1525438381u,
1348536411u,
2861338018u,
764077711u,
3785343245u,
457568934u,
4104954272u,
2381948487u,
3148473363u,
2180270337u,
1387729170u,
951677556u,
2721005055u,
66786703u,
1149351924u,
1895026827u,
3711056516u,
3638638708u,
2263003308u,
3448840877u,
225333538u,
3797521928u,
3262952567u,
2078619498u,
1178073973u,
3288261538u,
1496966875u,
2481012988u,
114945840u,
1632780103u,
2087949619u,
3787017905u,
2575395164u,
2971726178u,
3642087909u,
3894199764u,
203853421u,
425935223u,
3565833278u,
1748785729u,
580966986u,
2124704694u,
1107045577u,
1067532701u,
1406028344u,
18613994u,
3476683808u,
3762914298u,
1844996900u,
904215228u,
1118521573u,
3657647605u,
3136157065u,
2287683323u,
126005630u,
3555092974u,
49515858u,
1010661841u,
1902040126u,
1400735275u,
2771676666u,
2225229957u,
3454177594u,
2883475137u,
4144472319u,
1051332394u,
542648229u,
1669710469u,
553041029u,
584127807u,
2993670925u,
3587959456u,
1745399498u,
1404723176u,
1334333531u,
3239516985u,
1275954779u,
367320647u,
3684418197u,
4030809053u,
484559105u,
4255931645u,
4271715616u,
3171911678u,
928543347u,
2159512867u,
313902234u,
647086234u,
577214736u,
1130129573u,
995791646u,
1645086060u,
4122335794u,
1064648931u,
2752145076u,
3312498873u,
4238535494u,
1471227427u,
633688562u,
1959779970u,
766642813u,
1380896111u,
3647601207u,
1733961041u,
521947915u,
189164145u,
486382294u,
3770038872u,
3235740744u,
1912506671u,
2276864677u,
1588060152u,
2504457929u,
1471020554u,
3623212998u,
3026631806u,
2342164722u,
1674890530u,
3011542850u,
3549160092u,
4290680005u,
3943068002u,
2273781461u,
2127663659u,
1646681121u,
447810651u,
2366308558u,
970504950u,
2008155560u,
2695940969u,
3444688454u,
1739318893u,
2683090634u,
2774816580u,
437560100u,
512012738u,
3305170944u,
665292744u,
3580039116u,
1579404983u,
3397891494u,
710590371u,
2514565805u,
3624609754u,
3516075816u,
1314000850u,
1935166880u,
3257747610u,
3776931214u,
3183054185u,
675129307u,
3333261712u,
1154611403u,
2759854023u,
1963228038u,
505138315u,
1803966773u,
4032705384u,
798395739u,
3473799845u,
476400898u,
602972493u,
3289878097u,
2520311409u,
3214794876u,
748160407u,
1326769504u,
902775872u,
1372805534u,
1213925114u,
3009384989u,
3781981134u,
2835608783u,
2716786748u,
1669490957u,
1089334066u,
250756920u,
4041016629u,
2495807367u,
2008251381u,
106212622u,
1927268995u,
2251978818u,
3788056262u,
3678660147u,
2656772270u,
1997584981u,
2668998785u,
2954162084u,
845687881u,
776018378u,
2066910012u,
918315064u,
};
// Return false only if offset is -1 and a spot check of 3 hashes all yield 0.
bool Test(int offset, int len = 0) {
#undef Check
#undef IsAlive
#define Check(x) do { \
const uint32_t actual = (x), e = expected[index++]; \
bool ok = actual == e; \
if (!ok) { \
cerr << "expected " << hex << e << " but got " << actual << endl; \
++errors; \
} \
assert(ok); \
} while (0)
#define IsAlive(x) do { alive += IsNonZero(x); } while (0)
// After the following line is where the uses of "Check" and such will go.
static int index = 0;
if (offset == -1) { int alive = 0; IsAlive(farmhashnt::Hash32WithSeed(data, len++, SEED)); IsAlive(farmhashnt::Hash32(data, len++)); IsAlive(farmhashnt::Hash32(data, len++)); len -= 3; return alive > 0; }
Check(farmhashnt::Hash32WithSeed(data + offset, len, SEED));
Check(farmhashnt::Hash32(data + offset, len));
return true;
#undef Check
#undef IsAlive
}
int RunTest() {
Setup();
int i = 0;
cout << "Running farmhashntTest";
if (!Test(-1)) {
cout << "... Unavailable\n";
return NoteErrors();
}
// Good. The function is attempting to hash, so run the full test.
int errors_prior_to_test = errors;
for ( ; i < kTestSize - 1; i++) {
Test(i * i, i);
}
for ( ; i < kDataSize; i += i / 7) {
Test(0, i);
}
Test(0, kDataSize);
cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n");
return NoteErrors();
}
#else
// After the following line is where the code to print hash codes will go.
void Dump(int offset, int len) {
cout << farmhashnt::Hash32WithSeed(data + offset, len, SEED) << "u," << endl;
cout << farmhashnt::Hash32(data + offset, len) << "u," << endl;
}
#endif
#undef SEED
#undef SEED1
#undef SEED0
} // namespace farmhashntTest
#if TESTING
static int farmhashntTestResult = farmhashntTest::RunTest();
#else
int main(int argc, char** argv) {
Setup();
cout << "uint32_t expected[] = {\n";
int i = 0;
for ( ; i < kTestSize - 1; i++) {
farmhashntTest::Dump(i * i, i);
}
for ( ; i < kDataSize; i += i / 7) {
farmhashntTest::Dump(0, i);
}
farmhashntTest::Dump(0, kDataSize);
cout << "};\n";
}
#endif
#ifndef FARMHASH_SELF_TEST_GUARD
#define FARMHASH_SELF_TEST_GUARD
#include <cstdio>
#include <iostream>
#include <string.h>
using std::cout;
using std::cerr;
using std::endl;
using std::hex;
static const uint64_t kSeed0 = 1234567;
static const uint64_t kSeed1 = k0;
static const int kDataSize = 1 << 20;
static const int kTestSize = 300;
#define kSeed128 Uint128(kSeed0, kSeed1)
static char data[kDataSize];
static int completed_self_tests = 0;
static int errors = 0;
// Initialize data to pseudorandom values.
void Setup() {
if (completed_self_tests == 0) {
uint64_t a = 9;
uint64_t b = 777;
for (int i = 0; i < kDataSize; i++) {
a += b;
b += a;
a = (a ^ (a >> 41)) * k0;
b = (b ^ (b >> 41)) * k0 + i;
uint8_t u = b >> 37;
memcpy(data + i, &u, 1); // uint8_t -> char
}
}
}
int NoteErrors() {
#define NUM_SELF_TESTS 9
if (++completed_self_tests == NUM_SELF_TESTS)
std::exit(errors > 0);
return errors;
}
template <typename T> inline bool IsNonZero(T x) {
return x != 0;
}
template <> inline bool IsNonZero<uint128_t>(uint128_t x) {
return x != Uint128(0, 0);
}
#endif // FARMHASH_SELF_TEST_GUARD
namespace farmhashsaTest {
uint32_t CreateSeed(int offset, int salt) {
uint32_t h = static_cast<uint32_t>(salt & 0xffffffff);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h += static_cast<uint32_t>(offset & 0xffffffff);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
return h;
}
#undef SEED
#undef SEED1
#undef SEED0
#define SEED CreateSeed(offset, -1)
#define SEED0 CreateSeed(offset, 0)
#define SEED1 CreateSeed(offset, 1)
#undef TESTING
#define TESTING 1
#if TESTING
uint32_t expected[] = {
4223616069u,
3696677242u,
4081014168u,
2576519988u,
2212771159u,
1112731063u,
1020067935u,
3955445564u,
1451961420u,
653440099u,
31917516u,
2957164615u,
2590087362u,
3879448744u,
176305566u,
2447367541u,
1359016305u,
3363804638u,
1117290165u,
1062549743u,
2437877004u,
1894455839u,
673206794u,
3486923651u,
3269862919u,
2303349487u,
1380660650u,
595525107u,
1525325287u,
2025609358u,
176408838u,
1592885012u,
864896482u,
2101378090u,
3489229104u,
2118965695u,
581644891u,
2718789079u,
631613207u,
4228658372u,
3867875546u,
3531368319u,
3804516756u,
3317755099u,
1619744564u,
2884717286u,
1088213445u,
2667691076u,
3727873235u,
2330406762u,
858590707u,
123802208u,
4150036245u,
182283099u,
1478882570u,
3282617403u,
819171187u,
1172627392u,
4254302102u,
2957028020u,
437030323u,
2452147680u,
2868246750u,
3530169402u,
3154852132u,
215019192u,
357580983u,
1354454461u,
1108813287u,
2324008118u,
2315997713u,
4181601562u,
1360882441u,
92423273u,
3048866755u,
3369188505u,
3664371439u,
2920710428u,
1027891570u,
2653166430u,
3461888315u,
1475780447u,
292769636u,
1737473313u,
4064110516u,
4170160075u,
762850927u,
3630603695u,
2803307356u,
844987665u,
460980967u,
3005635467u,
2802568977u,
588668033u,
2148940781u,
3239099984u,
1266953698u,
3197808789u,
3519942533u,
2511995334u,
2553810188u,
871667697u,
1358675720u,
1499319171u,
2044931270u,
1210355103u,
807152540u,
3262320756u,
2810214575u,
1813386141u,
4089465863u,
903928165u,
1388899322u,
3209183659u,
834536144u,
2733354550u,
2742289921u,
3689042563u,
2655593281u,
4169686303u,
415985561u,
138892376u,
516115393u,
65683883u,
4162865100u,
889944635u,
313566528u,
3346420907u,
1504303591u,
2256809275u,
742243229u,
779775302u,
3140940172u,
2312556111u,
2304095772u,
1151741606u,
2194712422u,
1714084652u,
3272736835u,
1311540658u,
191179665u,
3996605106u,
1657345233u,
4205442903u,
1553339212u,
2351843044u,
1647502006u,
2525516233u,
292202846u,
1498646290u,
1429323381u,
974274898u,
3759331561u,
2881238887u,
826787221u,
1069622448u,
221991032u,
1462969082u,
2799661508u,
364022781u,
2594244377u,
797773898u,
4097839290u,
1529150125u,
2456805570u,
541503425u,
3936326142u,
3112719954u,
775223581u,
3074018423u,
3198488875u,
1772191849u,
2456535211u,
3154686028u,
1520862019u,
4005829426u,
1306433767u,
1943028506u,
2246000782u,
1057766454u,
3761996982u,
3441075333u,
898641979u,
3450209088u,
3941329307u,
3289922449u,
3085075827u,
1814193220u,
690422997u,
2627846676u,
2653520704u,
3739145533u,
3996776010u,
2287072592u,
1346671698u,
3082629900u,
2298811274u,
3639722036u,
1729419228u,
1836765953u,
3708118742u,
213436u,
950223749u,
3734247682u,
2924575678u,
1382024841u,
2431637732u,
3448846682u,
1341301397u,
4206956590u,
1730650902u,
2581075456u,
1542359141u,
707222542u,
2925350541u,
3846303536u,
3579103295u,
3932175763u,
1339615732u,
848825750u,
1070170828u,
1964973818u,
577060344u,
607721296u,
4031023048u,
406883794u,
3991905552u,
1198544082u,
872468460u,
1044847096u,
3159976313u,
3020028266u,
2108700400u,
3373767922u,
264431841u,
2817097007u,
3700061048u,
1733731531u,
3459415893u,
80378591u,
1479875104u,
19735612u,
1382658977u,
3416562245u,
1959852842u,
2384002344u,
124683828u,
3725782174u,
2300301222u,
393852269u,
1302492002u,
3623776492u,
3787086417u,
1730024749u,
1710531361u,
443700716u,
1461987482u,
671998131u,
3018380746u,
2592292305u,
3390799372u,
3945101155u,
3743494852u,
3716045582u,
996005166u,
320698449u,
3420221765u,
1518157951u,
2555810666u,
3381929684u,
2019638523u,
3088262796u,
2072178906u,
3433649364u,
203906916u,
34663784u,
290301305u,
1188021504u,
3754681145u,
3920313139u,
2840496520u,
1656802962u,
2288475489u,
3399185138u,
1296000826u,
2362384746u,
309633360u,
2719851778u,
776035930u,
3200733043u,
365690832u,
3326378243u,
1500331457u,
1625708592u,
4230903462u,
715344888u,
3363777768u,
2243620288u,
2890765789u,
553154234u,
4044100108u,
4056887320u,
1185656496u,
3671476744u,
1064586897u,
1154949698u,
3493481974u,
1294573722u,
1869224012u,
2530084956u,
995321553u,
833419249u,
563815282u,
250258043u,
2970801822u,
441007535u,
42246961u,
2820426655u,
2878882436u,
2363245780u,
2138489282u,
2972360481u,
2312619393u,
3598664848u,
3071556076u,
776990325u,
3220427357u,
2257939577u,
3817305903u,
1502979698u,
3159755934u,
3955997276u,
2423850008u,
1959927572u,
1219782288u,
4119776679u,
1124253854u,
3678052422u,
2620644947u,
1262408666u,
3480072280u,
2627137665u,
807538749u,
3276646337u,
518510128u,
1137828655u,
1498449110u,
3031692317u,
1125635969u,
1130096111u,
780007336u,
3111856399u,
1014917264u,
780877352u,
2909458336u,
4235949214u,
2423879289u,
275888892u,
3891926795u,
3538163953u,
54815161u,
162228302u,
258154068u,
3554455591u,
1801469029u,
2801563220u,
726560058u,
2450221940u,
3677582978u,
440993800u,
424762443u,
2624525253u,
2587715329u,
2292264424u,
1074856749u,
3294752007u,
3164112672u,
2399146799u,
1920182465u,
3858835361u,
193755240u,
3333610311u,
1757504059u,
2576027039u,
2775253365u,
2939191561u,
1046147275u,
235149906u,
4262218222u,
2900542726u,
2260154702u,
1019551635u,
1194720570u,
3519118691u,
3039483153u,
84918216u,
3053381097u,
2572396843u,
3849763371u,
2782686780u,
3710049554u,
3403430713u,
2346080784u,
2496307442u,
1597281872u,
696018239u,
704625714u,
623026921u,
3182413559u,
3794540330u,
305497722u,
1592680199u,
2377854072u,
3060601746u,
3953057908u,
3941551588u,
1033716182u,
2765716854u,
1309699058u,
3519400181u,
3073370877u,
115583008u,
4032909296u,
2944563574u,
3762753718u,
192842727u,
1711348701u,
3086147235u,
1658229443u,
1479783872u,
3839977157u,
225619117u,
1349684817u,
1964813173u,
565753187u,
2530252046u,
840014353u,
1645183704u,
3668429078u,
3438418557u,
639704059u,
360837811u,
2531807958u,
1572353913u,
2116037299u,
1948437512u,
744553393u,
2380697034u,
3775234105u,
3816065157u,
301868653u,
2960939561u,
3306528247u,
2389296549u,
805918610u,
1759358265u,
1760876328u,
2827601706u,
2944594708u,
3313666458u,
2022601495u,
730938791u,
193539397u,
2026103244u,
802928398u,
2630934308u,
782805818u,
3499326016u,
293509489u,
3646131514u,
3182478647u,
854800333u,
2284531628u,
438528022u,
2339298129u,
1692289216u,
2427728723u,
46501288u,
350652353u,
1355971222u,
889682372u,
944799254u,
2763906061u,
2807550612u,
2683762637u,
100870317u,
2449357318u,
2638348436u,
4206088869u,
1788948473u,
3537588549u,
2782490204u,
134406470u,
2409190528u,
2362439849u,
1861661528u,
2101513194u,
1424834765u,
3581765745u,
3185999525u,
2057487100u,
2303941176u,
3639628788u,
1180265315u,
230437935u,
2108319366u,
1131685143u,
1055685292u,
1509007009u,
1258485140u,
560525005u,
3598799040u,
3835680585u,
1851859628u,
332858996u,
641769248u,
4252450037u,
865386707u,
720719117u,
3133612164u,
3833045874u,
3492515435u,
2465970289u,
4234420011u,
573859916u,
252532886u,
870392318u,
4051320920u,
894929092u,
3748361688u,
699355960u,
1885212350u,
1609756949u,
461896870u,
1337065461u,
1775211059u,
1786193749u,
2815154643u,
2128729882u,
969639529u,
3960427545u,
859416958u,
2739758802u,
2698032197u,
2813292418u,
1985467524u,
396604317u,
4122172759u,
1201259789u,
4282051702u,
3270018895u,
961215209u,
961075860u,
4211926998u,
4088374597u,
577510509u,
3058349487u,
4025377754u,
2815478438u,
471023164u,
3947959608u,
4161486934u,
2299888461u,
1103571511u,
2450153872u,
1839939275u,
108299608u,
858086440u,
1030152945u,
3895328530u,
3009080718u,
3690840454u,
3847025277u,
152331362u,
161365689u,
831319961u,
2166017294u,
3945322722u,
4059970216u,
1420824131u,
2770648308u,
1567250186u,
2181067149u,
1939743488u,
3080158120u,
3435218248u,
2495237495u,
3814085102u,
3180983013u,
3199054292u,
2204745908u,
1140337267u,
2213569784u,
1941879842u,
2105562605u,
3618835614u,
2247103645u,
2492473487u,
856414299u,
166022030u,
4080104712u,
3218935344u,
3284220561u,
4261581452u,
1206944836u,
3496705432u,
2215996876u,
3154627465u,
3384005496u,
742170556u,
1333047620u,
802680366u,
156833431u,
2682100354u,
2493654830u,
584848366u,
1691693131u,
2169934170u,
779968026u,
2099545800u,
1423039695u,
4292110968u,
4266576788u,
149142597u,
748501873u,
3865014822u,
1913588198u,
130285614u,
3500768879u,
915458923u,
3071792750u,
1339986633u,
4143929149u,
4048379479u,
725193827u,
1375113643u,
2425277412u,
4144659274u,
465714768u,
226991589u,
2212127704u,
3936145258u,
2891024846u,
3816000225u,
979331165u,
1749907536u,
53847318u,
1462525833u,
2961425455u,
368859113u,
3572721452u,
453048644u,
1628629918u,
3497673923u,
3619079585u,
139870565u,
1518176798u,
3933074281u,
1878623729u,
2074035641u,
3016759257u,
1313053591u,
2557706970u,
2348296582u,
962370022u,
2337285014u,
1618936717u,
1915877085u,
2743743122u,
3250783882u,
1346652536u,
143311109u,
2443788461u,
1048248964u,
2806619339u,
3263266976u,
1668146349u,
3397428868u,
3276188862u,
1774196343u,
1993847813u,
2771079610u,
476672419u,
2119050359u,
2918326659u,
2245402721u,
2692910474u,
2374383269u,
342400227u,
2961437795u,
3899230368u,
337787132u,
3664444935u,
1269451153u,
2971526729u,
1486511182u,
791070133u,
2570319890u,
3482497490u,
2134230518u,
4273391202u,
1825511330u,
3947753714u,
1389755724u,
3995075516u,
2081052615u,
3626343470u,
4213603435u,
2137917278u,
2898987303u,
3059215715u,
3383237881u,
3003674434u,
409174425u,
1911915604u,
2087728055u,
2942005882u,
3386522440u,
714936074u,
261924004u,
3268784033u,
1141188757u,
2413217552u,
1515163433u,
};
// Return false only if offset is -1 and a spot check of 3 hashes all yield 0.
bool Test(int offset, int len = 0) {
#undef Check
#undef IsAlive
#define Check(x) do { \
const uint32_t actual = (x), e = expected[index++]; \
bool ok = actual == e; \
if (!ok) { \
cerr << "expected " << hex << e << " but got " << actual << endl; \
++errors; \
} \
assert(ok); \
} while (0)
#define IsAlive(x) do { alive += IsNonZero(x); } while (0)
// After the following line is where the uses of "Check" and such will go.
static int index = 0;
if (offset == -1) { int alive = 0; IsAlive(farmhashsa::Hash32WithSeed(data, len++, SEED)); IsAlive(farmhashsa::Hash32(data, len++)); IsAlive(farmhashsa::Hash32(data, len++)); len -= 3; return alive > 0; }
Check(farmhashsa::Hash32WithSeed(data + offset, len, SEED));
Check(farmhashsa::Hash32(data + offset, len));
return true;
#undef Check
#undef IsAlive
}
int RunTest() {
Setup();
int i = 0;
cout << "Running farmhashsaTest";
if (!Test(-1)) {
cout << "... Unavailable\n";
return NoteErrors();
}
// Good. The function is attempting to hash, so run the full test.
int errors_prior_to_test = errors;
for ( ; i < kTestSize - 1; i++) {
Test(i * i, i);
}
for ( ; i < kDataSize; i += i / 7) {
Test(0, i);
}
Test(0, kDataSize);
cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n");
return NoteErrors();
}
#else
// After the following line is where the code to print hash codes will go.
void Dump(int offset, int len) {
cout << farmhashsa::Hash32WithSeed(data + offset, len, SEED) << "u," << endl;
cout << farmhashsa::Hash32(data + offset, len) << "u," << endl;
}
#endif
#undef SEED
#undef SEED1
#undef SEED0
} // namespace farmhashsaTest
#if TESTING
static int farmhashsaTestResult = farmhashsaTest::RunTest();
#else
int main(int argc, char** argv) {
Setup();
cout << "uint32_t expected[] = {\n";
int i = 0;
for ( ; i < kTestSize - 1; i++) {
farmhashsaTest::Dump(i * i, i);
}
for ( ; i < kDataSize; i += i / 7) {
farmhashsaTest::Dump(0, i);
}
farmhashsaTest::Dump(0, kDataSize);
cout << "};\n";
}
#endif
#ifndef FARMHASH_SELF_TEST_GUARD
#define FARMHASH_SELF_TEST_GUARD
#include <cstdio>
#include <iostream>
#include <string.h>
using std::cout;
using std::cerr;
using std::endl;
using std::hex;
static const uint64_t kSeed0 = 1234567;
static const uint64_t kSeed1 = k0;
static const int kDataSize = 1 << 20;
static const int kTestSize = 300;
#define kSeed128 Uint128(kSeed0, kSeed1)
static char data[kDataSize];
static int completed_self_tests = 0;
static int errors = 0;
// Initialize data to pseudorandom values.
void Setup() {
if (completed_self_tests == 0) {
uint64_t a = 9;
uint64_t b = 777;
for (int i = 0; i < kDataSize; i++) {
a += b;
b += a;
a = (a ^ (a >> 41)) * k0;
b = (b ^ (b >> 41)) * k0 + i;
uint8_t u = b >> 37;
memcpy(data + i, &u, 1); // uint8_t -> char
}
}
}
int NoteErrors() {
#define NUM_SELF_TESTS 9
if (++completed_self_tests == NUM_SELF_TESTS)
std::exit(errors > 0);
return errors;
}
template <typename T> inline bool IsNonZero(T x) {
return x != 0;
}
template <> inline bool IsNonZero<uint128_t>(uint128_t x) {
return x != Uint128(0, 0);
}
#endif // FARMHASH_SELF_TEST_GUARD
namespace farmhashsuTest {
uint32_t CreateSeed(int offset, int salt) {
uint32_t h = static_cast<uint32_t>(salt & 0xffffffff);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h += static_cast<uint32_t>(offset & 0xffffffff);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
return h;
}
#undef SEED
#undef SEED1
#undef SEED0
#define SEED CreateSeed(offset, -1)
#define SEED0 CreateSeed(offset, 0)
#define SEED1 CreateSeed(offset, 1)
#undef TESTING
#define TESTING 1
#if TESTING
uint32_t expected[] = {
4223616069u,
3696677242u,
4081014168u,
2576519988u,
2212771159u,
1112731063u,
1020067935u,
3955445564u,
1451961420u,
653440099u,
31917516u,
2957164615u,
2590087362u,
3879448744u,
176305566u,
2447367541u,
1359016305u,
3363804638u,
1117290165u,
1062549743u,
2437877004u,
1894455839u,
673206794u,
3486923651u,
3269862919u,
2303349487u,
1380660650u,
595525107u,
1525325287u,
2025609358u,
176408838u,
1592885012u,
864896482u,
2101378090u,
3489229104u,
2118965695u,
581644891u,
2718789079u,
631613207u,
4228658372u,
3867875546u,
3531368319u,
3804516756u,
3317755099u,
1619744564u,
2884717286u,
1088213445u,
2667691076u,
3727873235u,
2330406762u,
858590707u,
457744844u,
4150036245u,
2000404290u,
1478882570u,
901678172u,
819171187u,
195942998u,
4254302102u,
3967266927u,
437030323u,
4018009204u,
2868246750u,
3540087514u,
3154852132u,
3319116625u,
357580983u,
3177665294u,
1108813287u,
1253366798u,
2315997713u,
510718750u,
1360882441u,
2770216279u,
3048866755u,
3406961221u,
3664371439u,
1151145514u,
1027891570u,
2699067992u,
3461888315u,
198061905u,
292769636u,
1106771795u,
4064110516u,
3258279756u,
762850927u,
1818699721u,
2803307356u,
3919169404u,
460980967u,
3125535078u,
2802568977u,
3582546426u,
2148940781u,
3963274378u,
1266953698u,
204185123u,
1100034381u,
3009193601u,
4200651967u,
274889605u,
2700589508u,
952511689u,
3765324859u,
3465498478u,
4014967037u,
2070988082u,
2972423530u,
3068638223u,
4156773651u,
489509804u,
1323863238u,
3731914806u,
2846098469u,
2728930632u,
346814072u,
848146907u,
551160669u,
4165126521u,
2039095001u,
4179859388u,
2434936359u,
2764414551u,
238491210u,
732483969u,
3366512764u,
478307468u,
4124179572u,
4142733597u,
1953448206u,
4199329278u,
865077060u,
2627662116u,
2802499360u,
3141206831u,
1959218197u,
911371451u,
125987200u,
2821366175u,
2530992747u,
2409206225u,
117991880u,
2133402461u,
895510531u,
428719601u,
3036014536u,
1223783733u,
733793540u,
970650405u,
547701766u,
570764615u,
3224485368u,
3192714940u,
319942831u,
3940200341u,
362056204u,
2832368105u,
1853281226u,
3296434636u,
3752508307u,
604292768u,
2231940616u,
1204094681u,
866194005u,
2405201650u,
2466384396u,
380829379u,
230033818u,
2783417588u,
4249886729u,
829569301u,
2988322580u,
2299983554u,
74748560u,
737514425u,
3153050211u,
652642663u,
1270205115u,
227197032u,
2773091790u,
325849216u,
49998791u,
4043203010u,
3662748068u,
1709364383u,
1179105165u,
1478504366u,
2980456610u,
1167476429u,
1590390732u,
1306256496u,
292008135u,
374690995u,
1809200819u,
1680595904u,
646040226u,
1742445560u,
2435776844u,
3703683804u,
478742495u,
814967947u,
2698190177u,
1003617993u,
1436118705u,
217056304u,
1412287094u,
2738417466u,
2933279339u,
3461877733u,
1203141205u,
2119492857u,
1134895723u,
1560001021u,
3786320122u,
3748116258u,
3486219595u,
702138030u,
1062984182u,
232789133u,
1566523968u,
3885443778u,
1820171888u,
3655858585u,
2316903005u,
2678779620u,
395625433u,
1609107564u,
3108726411u,
2937837224u,
3911907151u,
557272509u,
3893435978u,
1542613576u,
1079886893u,
2624566322u,
1413700616u,
2796974006u,
1922556114u,
562820464u,
2845409784u,
54180312u,
1898782464u,
3681814953u,
2417064617u,
1815464483u,
911626132u,
2964575550u,
1852696128u,
2319647785u,
1998904590u,
619992689u,
3073207513u,
1238163512u,
3199435982u,
828667254u,
3561155502u,
3943095163u,
1045711849u,
2238679131u,
2114975398u,
713808403u,
3871787494u,
2572031161u,
2360934075u,
2337781107u,
262596504u,
693836699u,
2129369850u,
3543189427u,
962205222u,
3685581020u,
692974477u,
725182211u,
646123906u,
2368836544u,
2505872733u,
1999977610u,
1639885802u,
1475058032u,
207023609u,
2773581234u,
3524857793u,
3433371102u,
3243027613u,
1787668353u,
985757946u,
3896012929u,
702356957u,
3559331129u,
884084870u,
4009998120u,
648888720u,
1403349048u,
1624342778u,
1766674171u,
2518582204u,
3251243146u,
792751003u,
1377201813u,
3629686054u,
1583734324u,
3647107626u,
4258564381u,
1469878609u,
1940598241u,
2755003690u,
1907120418u,
109916701u,
775347954u,
2090960874u,
611281803u,
3470490146u,
3301663253u,
1835412158u,
1803066146u,
591872433u,
550703713u,
1495089683u,
826492808u,
817200035u,
4177474571u,
688070143u,
971427632u,
1442499481u,
3568640348u,
2789993738u,
85808128u,
2058346726u,
394058570u,
3466511434u,
318905230u,
4149248030u,
415308316u,
165997598u,
1219639412u,
1648022659u,
2857432523u,
1422508004u,
468095522u,
296968649u,
430250611u,
1775562314u,
2976361671u,
1040036362u,
1372510167u,
292746272u,
3408238954u,
626061886u,
1317637569u,
1237775792u,
1218490455u,
2224234499u,
590942419u,
713995643u,
3541889330u,
4140218960u,
3529791107u,
354462673u,
842607274u,
365048533u,
2638303414u,
3560458014u,
31621379u,
4210854794u,
1273118792u,
2572743762u,
3513175801u,
402066986u,
602524471u,
565029192u,
180576438u,
1288605959u,
2896244423u,
1420543484u,
1329862227u,
1791567324u,
4248690247u,
12917038u,
3483481310u,
2082050731u,
1611921143u,
2443766548u,
2216338811u,
2528006095u,
2984009021u,
674210884u,
2857608106u,
2155534809u,
1023105067u,
2968955846u,
3303624302u,
2502112850u,
245749006u,
3175229091u,
3342796184u,
3613785362u,
1614168851u,
2582149283u,
895403488u,
416205023u,
3792242000u,
529397534u,
299415203u,
4284673348u,
2096851282u,
1864524731u,
2012577738u,
3426363316u,
1387308508u,
1143610148u,
2027467219u,
3772856163u,
3453862623u,
2661437174u,
2047145955u,
2533381447u,
2059534115u,
439426587u,
1537543414u,
2384289877u,
3174229055u,
2658017753u,
2293148474u,
2359450158u,
3930242475u,
1510302397u,
3354288821u,
920095603u,
2415746928u,
2729472638u,
2261143371u,
848667611u,
919157153u,
3322393117u,
4103299943u,
413569608u,
68911216u,
3334990170u,
1228068652u,
1570056373u,
1905477543u,
2622302276u,
2935063895u,
3224810004u,
4211768578u,
828688131u,
3556122839u,
1930935348u,
2605825202u,
1540993970u,
3209115883u,
122847500u,
665638794u,
506571051u,
2691795295u,
3996966556u,
714660621u,
3662432239u,
470651837u,
1807432621u,
3755290953u,
359878860u,
2793081615u,
4065031431u,
904653062u,
2317800777u,
568501094u,
3492871707u,
2738806116u,
2883859610u,
3242080257u,
364246691u,
3601786516u,
3159362524u,
1578272201u,
1283574375u,
2912186103u,
2256279032u,
1540671086u,
2356088973u,
2892277779u,
3441449267u,
2225005503u,
3846428419u,
2014549218u,
2290734767u,
2126684614u,
4235463487u,
3811556204u,
174739661u,
767525888u,
47684458u,
4211168099u,
889063422u,
469864411u,
767407110u,
413337343u,
1618456644u,
2814499820u,
2401124192u,
632089437u,
1234980238u,
1288585402u,
3153169944u,
2917822069u,
1843320264u,
3794359132u,
3074573530u,
258629454u,
3813357060u,
3806887248u,
1665524736u,
3324533324u,
3005091922u,
793108368u,
1529669805u,
2332660395u,
2217730223u,
2634687611u,
442806463u,
1968135266u,
454523002u,
3177866230u,
2808960136u,
4259114138u,
4103264843u,
3103714075u,
2462967542u,
1466891491u,
477973764u,
834565647u,
741089037u,
218837573u,
1710536528u,
2469088212u,
1229072375u,
2828341u,
176923431u,
985763350u,
4095477420u,
1984145538u,
1870791084u,
674956677u,
1978138947u,
1296493993u,
1818183554u,
3443333721u,
2124949983u,
2549590262u,
2700850794u,
2662736367u,
739638109u,
4061447096u,
2960078422u,
2453781158u,
929570940u,
3200328383u,
2406328791u,
1419180666u,
2152455739u,
2805741044u,
3305999074u,
3183816361u,
2303165050u,
4922104u,
63096005u,
936656347u,
3104453886u,
1088673880u,
1113407526u,
1457890086u,
453478383u,
1107686695u,
3626027824u,
1159687359u,
2248467888u,
2004578380u,
3274954621u,
1787958646u,
2628726704u,
1138419798u,
3735442315u,
692385301u,
313807213u,
2329068673u,
59375364u,
3261084359u,
2088644507u,
2471153194u,
788336435u,
4024527246u,
141504460u,
2307553888u,
1930559950u,
48975711u,
2745693338u,
230161982u,
3429230862u,
1335968626u,
609591304u,
57435073u,
4279281136u,
3152151665u,
3984484924u,
3459883943u,
397478330u,
1738762229u,
3033590066u,
3611539498u,
1363463523u,
3319364965u,
2671169141u,
3819548561u,
1691193757u,
2423834608u,
2820147055u,
1378120632u,
1240565187u,
3180720050u,
680831086u,
3309658414u,
1986166490u,
762099827u,
510883662u,
2047373648u,
3606742294u,
3894965352u,
2342078853u,
1091255717u,
776594727u,
3217317445u,
1574468485u,
3844504016u,
2819598918u,
1037401010u,
2550943503u,
3867184001u,
1687911772u,
165313836u,
1679575281u,
2418947263u,
2038774952u,
3913543652u,
3209155736u,
149905221u,
3859604717u,
713919631u,
4069810796u,
1882959164u,
1019939034u,
2379867302u,
3666323035u,
1157389013u,
2422300650u,
3366777340u,
2526452062u,
1313747885u,
1039617868u,
1620553692u,
2032976978u,
578789528u,
1592846839u,
2270630604u,
897850577u,
1603294178u,
3105664807u,
1442670138u,
1728019360u,
79313861u,
1683031101u,
1913067024u,
4070719870u,
708986470u,
2586453359u,
3993348863u,
3358251279u,
3003552537u,
750174793u,
836888956u,
4190747426u,
4251291318u,
4145164938u,
1366883260u,
1912910955u,
510192669u,
1851315039u,
3574241274u,
3220062924u,
2821142039u,
1317082195u,
2274293302u,
1839219569u,
126586168u,
3989293643u,
2680178207u,
347056948u,
799681430u,
2864517481u,
3180404853u,
213140045u,
1956305184u,
1474675286u,
3085723423u,
2841859626u,
308421914u,
3670309263u,
1765052231u,
245459238u,
113434331u,
4079521092u,
2115235526u,
2943408816u,
1055476938u,
1506442339u,
2291296392u,
3267864332u,
1282145528u,
3700108015u,
1932843667u,
2677701670u,
6041177u,
3889648557u,
1461025478u,
};
// Return false only if offset is -1 and a spot check of 3 hashes all yield 0.
bool Test(int offset, int len = 0) {
#undef Check
#undef IsAlive
#define Check(x) do { \
const uint32_t actual = (x), e = expected[index++]; \
bool ok = actual == e; \
if (!ok) { \
cerr << "expected " << hex << e << " but got " << actual << endl; \
++errors; \
} \
assert(ok); \
} while (0)
#define IsAlive(x) do { alive += IsNonZero(x); } while (0)
// After the following line is where the uses of "Check" and such will go.
static int index = 0;
if (offset == -1) { int alive = 0; IsAlive(farmhashsu::Hash32WithSeed(data, len++, SEED)); IsAlive(farmhashsu::Hash32(data, len++)); IsAlive(farmhashsu::Hash32(data, len++)); len -= 3; return alive > 0; }
Check(farmhashsu::Hash32WithSeed(data + offset, len, SEED));
Check(farmhashsu::Hash32(data + offset, len));
return true;
#undef Check
#undef IsAlive
}
int RunTest() {
Setup();
int i = 0;
cout << "Running farmhashsuTest";
if (!Test(-1)) {
cout << "... Unavailable\n";
return NoteErrors();
}
// Good. The function is attempting to hash, so run the full test.
int errors_prior_to_test = errors;
for ( ; i < kTestSize - 1; i++) {
Test(i * i, i);
}
for ( ; i < kDataSize; i += i / 7) {
Test(0, i);
}
Test(0, kDataSize);
cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n");
return NoteErrors();
}
#else
// After the following line is where the code to print hash codes will go.
void Dump(int offset, int len) {
cout << farmhashsu::Hash32WithSeed(data + offset, len, SEED) << "u," << endl;
cout << farmhashsu::Hash32(data + offset, len) << "u," << endl;
}
#endif
#undef SEED
#undef SEED1
#undef SEED0
} // namespace farmhashsuTest
#if TESTING
static int farmhashsuTestResult = farmhashsuTest::RunTest();
#else
int main(int argc, char** argv) {
Setup();
cout << "uint32_t expected[] = {\n";
int i = 0;
for ( ; i < kTestSize - 1; i++) {
farmhashsuTest::Dump(i * i, i);
}
for ( ; i < kDataSize; i += i / 7) {
farmhashsuTest::Dump(0, i);
}
farmhashsuTest::Dump(0, kDataSize);
cout << "};\n";
}
#endif
#ifndef FARMHASH_SELF_TEST_GUARD
#define FARMHASH_SELF_TEST_GUARD
#include <cstdio>
#include <iostream>
#include <string.h>
using std::cout;
using std::cerr;
using std::endl;
using std::hex;
static const uint64_t kSeed0 = 1234567;
static const uint64_t kSeed1 = k0;
static const int kDataSize = 1 << 20;
static const int kTestSize = 300;
#define kSeed128 Uint128(kSeed0, kSeed1)
static char data[kDataSize];
static int completed_self_tests = 0;
static int errors = 0;
// Initialize data to pseudorandom values.
void Setup() {
if (completed_self_tests == 0) {
uint64_t a = 9;
uint64_t b = 777;
for (int i = 0; i < kDataSize; i++) {
a += b;
b += a;
a = (a ^ (a >> 41)) * k0;
b = (b ^ (b >> 41)) * k0 + i;
uint8_t u = b >> 37;
memcpy(data + i, &u, 1); // uint8_t -> char
}
}
}
int NoteErrors() {
#define NUM_SELF_TESTS 9
if (++completed_self_tests == NUM_SELF_TESTS)
std::exit(errors > 0);
return errors;
}
template <typename T> inline bool IsNonZero(T x) {
return x != 0;
}
template <> inline bool IsNonZero<uint128_t>(uint128_t x) {
return x != Uint128(0, 0);
}
#endif // FARMHASH_SELF_TEST_GUARD
namespace farmhashteTest {
uint32_t CreateSeed(int offset, int salt) {
uint32_t h = static_cast<uint32_t>(salt & 0xffffffff);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h += static_cast<uint32_t>(offset & 0xffffffff);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
return h;
}
#undef SEED
#undef SEED1
#undef SEED0
#define SEED CreateSeed(offset, -1)
#define SEED0 CreateSeed(offset, 0)
#define SEED1 CreateSeed(offset, 1)
#undef TESTING
#define TESTING 1
#if TESTING
uint32_t expected[] = {
1140953930u, 861465670u,
3277735313u, 2681724312u,
2598464059u, 797982799u,
890626835u, 800175912u,
2603993599u, 921001710u,
1410420968u, 2134990486u,
3283896453u, 1867689945u,
2914424215u, 2244477846u,
255297188u, 2992121793u,
1110588164u, 4186314283u,
161451183u, 3943596029u,
4019337850u, 452431531u,
283198166u, 2741341286u,
3379021470u, 2557197665u,
299850021u, 2532580744u,
452473466u, 1706958772u,
1298374911u, 3099673830u,
2199864459u, 3696623795u,
236935126u, 2976578695u,
4055299123u, 3281581178u,
1053458494u, 1882212500u,
2305012065u, 2169731866u,
3456121707u, 275903667u,
458884671u, 3033004529u,
3058973506u, 2379411653u,
1898235244u, 1402319660u,
2700149065u, 2699376854u,
147814787u, 720739346u,
2433714046u, 4222949502u,
4220361840u, 1712034059u,
3425469811u, 3690733394u,
4148372108u, 1330324210u,
594028478u, 2921867846u,
1635026870u, 192883107u,
780716741u, 1728752234u,
3280331829u, 326029180u,
3969463346u, 1436364519u,
393215742u, 3349570000u,
3824583307u, 1612122221u,
2859809759u, 3808705738u,
1379537552u, 1646032583u,
2233466664u, 1432476832u,
4023053163u, 2650381482u,
2052294713u, 3552092450u,
1628777059u, 1499109081u,
3476440786u, 3829307897u,
2960536756u, 1554038301u,
1145519619u, 3190844552u,
2902102606u, 3600725550u,
237495366u, 540224401u,
65721842u, 489963606u,
1448662590u, 397635823u,
1596489240u, 1562872448u,
1790705123u, 2128624475u,
180854224u, 2604346966u,
1435705557u, 1262831810u,
155445229u, 1672724608u,
1669465176u, 1341975128u,
663607706u, 2077310004u,
3610042449u, 1911523866u,
1043692997u, 1454396064u,
2563776023u, 294527927u,
1099072299u, 1389770549u,
703505868u, 678706990u,
2952353448u, 2026137563u,
3603803785u, 629449419u,
1933894405u, 3043213226u,
226132789u, 2489287368u,
1552847036u, 645684964u,
3828089804u, 3632594520u,
187883449u, 230403464u,
3151491850u, 3272648435u,
3729087873u, 1303930448u,
2002861219u, 165370827u,
916494250u, 1230085527u,
3103338579u, 3064290191u,
3807265751u, 3628174014u,
231181488u, 851743255u,
2295806711u, 1781190011u,
2988893883u, 1554380634u,
1142264800u, 3667013118u,
1968445277u, 315203929u,
2638023604u, 2290487377u,
732137533u, 1909203251u,
440398219u, 1891630171u,
1380301172u, 1498556724u,
4072067757u, 4165088768u,
4204318635u, 441430649u,
3931792696u, 197618179u,
956300927u, 914413116u,
3010839769u, 2837339569u,
2148126371u, 1913303225u,
3074915312u, 3117299654u,
4139181436u, 2993479124u,
3178848746u, 1357272220u,
1438494951u, 507436733u,
667183474u, 2084369203u,
3854939912u, 1413396341u,
126024219u, 146044391u,
1016656857u, 3022024459u,
3254014218u, 429095991u,
990500595u, 3056862311u,
985653208u, 1718653828u,
623071693u, 366414107u,
1771289760u, 2293458109u,
3047342438u, 2991127487u,
3120876698u, 1684583131u,
3638043310u, 1170404994u,
863214540u, 1087193030u,
199124911u, 520792961u,
3169775996u, 1577421232u,
3331828431u, 1013201099u,
1716848157u, 4033596884u,
1770708857u, 4229339322u,
1146169032u, 1434258493u,
3824360466u, 3242407770u,
1926419493u, 2649785113u,
872586426u, 762243036u,
2736953692u, 816692935u,
1571283333u, 3555213933u,
2266795890u, 3781899767u,
4290630595u, 517646945u,
3006163611u, 2180594090u,
959214578u, 558910384u,
1283799121u, 3047062993u,
3830962609u, 2391606125u,
3544509313u, 622325861u,
834785312u, 382936554u,
1421463872u, 788479970u,
1825135056u, 2725923798u,
580988377u, 2826990641u,
247825043u, 3167748333u,
812546227u, 2506885666u,
2584372201u, 1758123094u,
1891789696u, 389974094u,
345313518u, 2022370576u,
3886113119u, 3338548567u,
1083486947u, 2583576230u,
1776047957u, 1771384107u,
3604937815u, 3198590202u,
3027522813u, 4155628142u,
4232136669u, 427759438u,
4244322689u, 542201663u,
1549591985u, 2856634168u,
556609672u, 45845311u,
1175961330u, 3948351189u,
4165739882u, 4194218315u,
1634635545u, 4151937410u,
713127376u, 1467786451u,
1327394015u, 2743592929u,
2638154051u, 810082938u,
3077742128u, 1062268187u,
4084325664u, 3810665822u,
3735739145u, 2794294783u,
2335576331u, 2560479831u,
690240711u, 997658837u,
2442302747u, 3948961926u,
3958366652u, 3067277639u,
2059157774u, 1211737169u,
1516711748u, 2339636583u,
4188504038u, 59581167u,
2767897792u, 1389679610u,
2658147000u, 2643979752u,
3758739543u, 4189944477u,
1454470782u, 100876854u,
2995362413u, 118817200u,
3252925478u, 2062343506u,
2804483644u, 3088828656u,
1231633714u, 4168280671u,
2931588131u, 3284356565u,
1255909792u, 3130054947u,
4173605289u, 1407328702u,
1677744031u, 3532596884u,
3162657845u, 3887208531u,
2256541290u, 3459463480u,
3740979556u, 259034107u,
392987633u, 3233195759u,
3606709555u, 3424793077u,
315836068u, 3200749877u,
4065431359u, 760633989u,
2982018998u, 1811050648u,
234531934u, 1115203611u,
3897494162u, 1516407838u,
1603559457u, 323296368u,
2632963283u, 1778459926u,
2879836826u, 2146672889u,
3486330348u, 492621815u,
1231665285u, 2457048126u,
3438440082u, 2217471853u,
3355404249u, 3275550588u,
1052645068u, 862072556u,
4110617119u, 3745267835u,
2657392572u, 4279236653u,
1688445808u, 701920051u,
956734128u, 581695350u,
3157862788u, 2585726058u,
1192588249u, 1410111809u,
1651193125u, 3326135446u,
1073280453u, 97376972u,
2513844237u, 2187968410u,
3976859649u, 4267859263u,
3429034542u, 564493077u,
3000537321u, 479241367u,
3845637831u, 2868987960u,
51544337u, 1029173765u,
393624922u, 704325635u,
2357610553u, 1418509533u,
2007814586u, 3866658271u,
3082385053u, 735688735u,
916110004u, 3283299459u,
1051684175u, 1083796807u,
4074716319u, 813690332u,
144264390u, 1439630796u,
1508556987u, 675582689u,
3748881891u, 3195309868u,
362884708u, 1616408198u,
43233176u, 837301135u,
881504822u, 3254795114u,
1385506591u, 2799925823u,
1469874582u, 3464841997u,
497175391u, 3929484338u,
3975771289u, 1798536177u,
2926265846u, 1374242438u,
3675707838u, 4205965408u,
3153165629u, 1499475160u,
187287713u, 548490821u,
3255259608u, 4247675634u,
1940181471u, 3779953975u,
687167150u, 2319566715u,
1742785722u, 785893184u,
2296977392u, 2778575413u,
1794720651u, 48131484u,
4084891412u, 1160134629u,
3737623280u, 823113169u,
3423207646u, 3803213486u,
710625654u, 4116162021u,
3693420287u, 4167766971u,
1666602807u, 295320990u,
3513255468u, 2487440590u,
234080704u, 4004655503u,
2971762528u, 1479656873u,
4090178629u, 4044418876u,
391947536u, 1462554406u,
3909295855u, 1239580330u,
1515601363u, 2011102035u,
1442068334u, 4265993528u,
1191921695u, 2291355695u,
4257172787u, 576405853u,
314332944u, 4038839101u,
55559918u, 2378985842u,
711098718u, 2425317635u,
1644327317u, 1401013391u,
4193760037u, 2958260436u,
3167371443u, 3062418115u,
3800755475u, 3167030094u,
3489648204u, 1405430357u,
526177822u, 2602636307u,
915406019u, 4264167741u,
1484090483u, 3070944737u,
254529415u, 4017058800u,
1702710265u, 1029665228u,
2000382906u, 3185573940u,
1381258384u, 4036354071u,
2900841028u, 2670703363u,
2921748807u, 2899069938u,
4130543625u, 688472265u,
4186808827u, 1054670286u,
1132985391u, 2840525968u,
4175776103u, 338058159u,
1735964501u, 1539305024u,
3497121710u, 1568260669u,
2227290760u, 146827036u,
3977176001u, 4060134777u,
857488494u, 250055052u,
4284109679u, 2502815838u,
2592281721u, 1603444633u,
1390562014u, 1556658131u,
616327404u, 2448966429u,
3051191726u, 3891353218u,
1213304082u, 762328245u,
2239052397u, 1082330589u,
2455957292u, 201837927u,
405397452u, 3079886794u,
2583939798u, 2848283092u,
3750724631u, 883849006u,
3204198988u, 3341327098u,
1855234968u, 1982110346u,
1485529487u, 541496720u,
4117290321u, 3607433551u,
2168864636u, 133643215u,
1055817409u, 3847827123u,
2960769387u, 4046101649u,
1176127003u, 4015671361u,
4243643405u, 2849988118u,
517111221u, 1796672358u,
2045051700u, 3452457457u,
2948254999u, 2102063419u,
1556410577u, 1536380876u,
3776661467u, 3281002516u,
1735616066u, 1539151988u,
1087795162u, 3332431596u,
685631442u, 1147951686u,
95237878u, 2005032160u,
4012206915u, 4224354805u,
3204999386u, 2415262714u,
1433635018u, 116647396u,
83167836u, 2881562655u,
2729416454u, 1029284767u,
881378302u, 2159170082u,
555057366u, 1169104445u,
3963877000u, 1919171906u,
336034862u, 2017579106u,
4059340529u, 3020819343u,
865146997u, 2473524405u,
944743644u, 1694443528u,
1804513294u, 2904752429u,
617975720u, 3671562289u,
260177668u, 505662155u,
1885941445u, 2504509403u,
2260041112u, 1019936943u,
3722741628u, 1511077569u,
3100701179u, 1379422864u,
1535670711u, 773792826u,
1103819072u, 2089123665u,
1157547425u, 329152940u,
4142587430u, 484732447u,
2475035432u, 1120017626u,
412145504u, 965125959u,
324924679u, 2809286837u,
2842141483u, 4029205195u,
2974306813u, 515627448u,
3791551981u, 1097806406u,
3873078673u, 136118734u,
1872130856u, 3632422367u,
3574135531u, 4017075736u,
1699452298u, 1403506686u,
344414660u, 1189129691u,
3487080616u, 1516736273u,
1805475756u, 2562064338u,
163335594u, 2732147834u,
4077452507u, 2984955003u,
4271866024u, 3071338162u,
2347111903u, 873829983u,
1948409509u, 1923531348u,
459509140u, 771592405u,
1750124750u, 2334938333u,
213811117u, 2586632018u,
185232757u, 4032960199u,
2447383637u, 284777551u,
1654276320u, 2687561076u,
3512945009u, 308584855u,
1861027147u, 4102279334u,
3203802620u, 1692079268u,
4250142168u, 2565680167u,
1507046104u, 841195925u,
520565830u, 3674576684u,
38924274u, 3770488806u,
2414430882u, 3978473838u,
3703994407u, 69201295u,
3099963860u, 1255084262u,
690971838u, 3539996781u,
3696902571u, 3593730713u,
2363435042u, 54945052u,
1785765213u, 184911581u,
1586241476u, 1939595371u,
2534883189u, 2432427547u,
2374171993u, 2039128933u,
2955715987u, 2295501078u,
2741583197u, 1280920000u,
686818699u, 1238742497u,
3843660102u, 82177963u,
1281043691u, 1121403845u,
1697846708u, 284852964u,
278661677u, 2889101923u,
2127558730u, 713121337u,
872502474u, 511142139u,
1261140657u, 1747052377u,
2108187161u, 927011680u,
955328267u, 3821994995u,
2707230761u, 4142246789u,
4134691985u, 1958963937u,
2498463509u, 1977988705u,
1419293714u, 1636932722u,
2567532373u, 4075249328u,
240575705u, 1956681213u,
2598802768u, 2025886508u,
4104757832u, 3026358429u,
3242615202u, 4026813725u,
255108733u, 1845587644u,
3573008472u, 3615577014u,
1222733548u, 1205557630u,
917608574u, 1363253259u,
1541946015u, 3087190425u,
1138008081u, 1444019663u,
109793386u, 341851980u,
857839960u, 2515339233u,
156283211u, 1906768669u,
3886713057u, 1276595523u,
2809830736u, 460237542u,
3420452099u, 142985419u,
205970448u, 4198897105u,
1950698961u, 2069753399u,
1142216925u, 1113051162u,
1033680610u, 4278599955u,
1106466069u, 356742959u,
531521052u, 3494863964u,
225629455u, 3735275001u,
3662626864u, 1750561299u,
1012864651u, 2101846429u,
1074553219u, 668829411u,
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1241677652u, 4290680005u,
3193053279u, 2029187390u,
3298063095u, 3943068002u,
3946220635u, 2273781461u,
889053698u, 1376304022u,
1486839612u, 2127663659u,
344127443u, 1646681121u,
2780117810u, 2142045764u,
2694572773u, 447810651u,
2185527146u, 2366308558u,
290335413u, 584901173u,
2012370276u, 970504950u,
3258236042u, 2008155560u,
3945579565u, 614796295u,
24452072u, 2695940969u,
3983727134u, 3444688454u,
1327044473u, 3545633451u,
1875293322u, 1739318893u,
1707527799u, 2683090634u,
2848082386u, 2814622471u,
4111401777u, 2774816580u,
3849839194u, 437560100u,
2238350150u, 2462124836u,
665017710u, 512012738u,
2945294779u, 3305170944u,
819477765u, 59419271u,
155125658u, 665292744u,
444722813u, 3580039116u,
2355675635u, 663735032u,
3247800169u, 1579404983u,
1985115003u, 3397891494u,
358696453u, 1474896279u,
516388613u, 710590371u,
3490497111u, 2514565805u,
2386143445u, 477509654u,
412854590u, 3624609754u,
3214388668u, 3516075816u,
2731288520u, 1369482895u,
4033204378u, 1314000850u,
829769325u, 1935166880u,
1608191643u, 2607067237u,
423820371u, 3257747610u,
1355298041u, 3776931214u,
4105054901u, 2107080812u,
1911521879u, 3183054185u,
3910177801u, 675129307u,
1209358971u, 4205727791u,
1435726287u, 3333261712u,
1400982708u, 1154611403u,
1663501483u, 2837596667u,
3164734053u, 2759854023u,
4012043629u, 1963228038u,
3981675284u, 2677557877u,
520119591u, 505138315u,
897271356u, 1803966773u,
1016663294u, 616691903u,
2254742522u, 4032705384u,
2468470796u, 798395739u,
3025169002u, 3570037122u,
1461093710u, 3473799845u,
3702624858u, 476400898u,
1043039728u, 2304070437u,
181576948u, 602972493u,
3996616030u, 3289878097u,
2068516226u, 3922247304u,
1299968266u, 2520311409u,
1968824721u, 3214794876u,
1581813122u, 2668800905u,
3297613974u, 748160407u,
1145536484u, 1326769504u,
2973323521u, 3775262814u,
3218653169u, 902775872u,
3498603433u, 1372805534u,
704686363u, 3626542352u,
2271580579u, 1213925114u,
46329775u, 3009384989u,
1330254048u, 1194824134u,
514204310u, 3781981134u,
442526164u, 2835608783u,
3460471867u, 510634034u,
546406434u, 2716786748u,
2840500021u, 1669490957u,
2536189149u, 3251421224u,
1358736072u, 1089334066u,
3260749330u, 250756920u,
2974806681u, 1513718866u,
82635635u, 4041016629u,
3391765744u, 2495807367u,
3962674316u, 2822889695u,
753413337u, 2008251381u,
3123390177u, 106212622u,
490570565u, 1684884205u,
793892547u, 1927268995u,
2344148164u, 2251978818u,
437424236u, 2774023200u,
2674940754u, 3788056262u,
2597882666u, 3678660147u,
3797434193u, 3838215866u,
279687080u, 2656772270u,
2190204787u, 1997584981u,
3384401882u, 3160208845u,
3629379425u, 2668998785u,
1050036757u, 2954162084u,
917091826u, 1744374041u,
1454282570u, 845687881u,
2997173625u, 776018378u,
1137560602u, 1938378389u,
1748082354u, 2066910012u,
2677675207u, 918315064u,
};
// Return false only if offset is -1 and a spot check of 3 hashes all yield 0.
bool Test(int offset, int len = 0) {
#undef Check
#undef IsAlive
#define Check(x) do { \
const uint32_t actual = (x), e = expected[index++]; \
bool ok = actual == e; \
if (!ok) { \
cerr << "expected " << hex << e << " but got " << actual << endl; \
++errors; \
} \
assert(ok); \
} while (0)
#define IsAlive(x) do { alive += IsNonZero(x); } while (0)
// After the following line is where the uses of "Check" and such will go.
static int index = 0;
if (offset == -1) { int alive = 0; { uint64_t h = farmhashte::Hash64WithSeeds(data, len++, SEED0, SEED1); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashte::Hash64WithSeed(data, len++, SEED); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashte::Hash64(data, len++); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } len -= 3; return alive > 0; }
{ uint64_t h = farmhashte::Hash64WithSeeds(data + offset, len, SEED0, SEED1); Check(h >> 32); Check((h << 32) >> 32); }
{ uint64_t h = farmhashte::Hash64WithSeed(data + offset, len, SEED); Check(h >> 32); Check((h << 32) >> 32); }
{ uint64_t h = farmhashte::Hash64(data + offset, len); Check(h >> 32); Check((h << 32) >> 32); }
return true;
#undef Check
#undef IsAlive
}
int RunTest() {
Setup();
int i = 0;
cout << "Running farmhashteTest";
if (!Test(-1)) {
cout << "... Unavailable\n";
return NoteErrors();
}
// Good. The function is attempting to hash, so run the full test.
int errors_prior_to_test = errors;
for ( ; i < kTestSize - 1; i++) {
Test(i * i, i);
}
for ( ; i < kDataSize; i += i / 7) {
Test(0, i);
}
Test(0, kDataSize);
cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n");
return NoteErrors();
}
#else
// After the following line is where the code to print hash codes will go.
void Dump(int offset, int len) {
{ uint64_t h = farmhashte::Hash64WithSeeds(data + offset, len, SEED0, SEED1); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; }
{ uint64_t h = farmhashte::Hash64WithSeed(data + offset, len, SEED); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; }
{ uint64_t h = farmhashte::Hash64(data + offset, len); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; }
}
#endif
#undef SEED
#undef SEED1
#undef SEED0
} // namespace farmhashteTest
#if TESTING
static int farmhashteTestResult = farmhashteTest::RunTest();
#else
int main(int argc, char** argv) {
Setup();
cout << "uint32_t expected[] = {\n";
int i = 0;
for ( ; i < kTestSize - 1; i++) {
farmhashteTest::Dump(i * i, i);
}
for ( ; i < kDataSize; i += i / 7) {
farmhashteTest::Dump(0, i);
}
farmhashteTest::Dump(0, kDataSize);
cout << "};\n";
}
#endif
#ifndef FARMHASH_SELF_TEST_GUARD
#define FARMHASH_SELF_TEST_GUARD
#include <cstdio>
#include <iostream>
#include <string.h>
using std::cout;
using std::cerr;
using std::endl;
using std::hex;
static const uint64_t kSeed0 = 1234567;
static const uint64_t kSeed1 = k0;
static const int kDataSize = 1 << 20;
static const int kTestSize = 300;
#define kSeed128 Uint128(kSeed0, kSeed1)
static char data[kDataSize];
static int completed_self_tests = 0;
static int errors = 0;
// Initialize data to pseudorandom values.
void Setup() {
if (completed_self_tests == 0) {
uint64_t a = 9;
uint64_t b = 777;
for (int i = 0; i < kDataSize; i++) {
a += b;
b += a;
a = (a ^ (a >> 41)) * k0;
b = (b ^ (b >> 41)) * k0 + i;
uint8_t u = b >> 37;
memcpy(data + i, &u, 1); // uint8_t -> char
}
}
}
int NoteErrors() {
#define NUM_SELF_TESTS 9
if (++completed_self_tests == NUM_SELF_TESTS)
std::exit(errors > 0);
return errors;
}
template <typename T> inline bool IsNonZero(T x) {
return x != 0;
}
template <> inline bool IsNonZero<uint128_t>(uint128_t x) {
return x != Uint128(0, 0);
}
#endif // FARMHASH_SELF_TEST_GUARD
namespace farmhashuoTest {
uint32_t CreateSeed(int offset, int salt) {
uint32_t h = static_cast<uint32_t>(salt & 0xffffffff);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h += static_cast<uint32_t>(offset & 0xffffffff);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
return h;
}
#undef SEED
#undef SEED1
#undef SEED0
#define SEED CreateSeed(offset, -1)
#define SEED0 CreateSeed(offset, 0)
#define SEED1 CreateSeed(offset, 1)
#undef TESTING
#define TESTING 1
#if TESTING
uint32_t expected[] = {
3277735313u, 2681724312u,
2598464059u, 797982799u,
2603993599u, 921001710u,
1410420968u, 2134990486u,
2914424215u, 2244477846u,
255297188u, 2992121793u,
161451183u, 3943596029u,
4019337850u, 452431531u,
3379021470u, 2557197665u,
299850021u, 2532580744u,
1298374911u, 3099673830u,
2199864459u, 3696623795u,
4055299123u, 3281581178u,
1053458494u, 1882212500u,
3456121707u, 275903667u,
458884671u, 3033004529u,
1898235244u, 1402319660u,
2700149065u, 2699376854u,
2433714046u, 4222949502u,
4220361840u, 1712034059u,
4148372108u, 1330324210u,
594028478u, 2921867846u,
780716741u, 1728752234u,
3280331829u, 326029180u,
393215742u, 3349570000u,
3824583307u, 1612122221u,
1379537552u, 1646032583u,
2233466664u, 1432476832u,
2052294713u, 3552092450u,
1628777059u, 1499109081u,
2960536756u, 1554038301u,
1145519619u, 3190844552u,
237495366u, 540224401u,
65721842u, 489963606u,
1596489240u, 1562872448u,
1790705123u, 2128624475u,
1435705557u, 1262831810u,
155445229u, 1672724608u,
663607706u, 2077310004u,
3610042449u, 1911523866u,
2563776023u, 294527927u,
1099072299u, 1389770549u,
2952353448u, 2026137563u,
3603803785u, 629449419u,
226132789u, 2489287368u,
1552847036u, 645684964u,
187883449u, 230403464u,
3151491850u, 3272648435u,
2002861219u, 165370827u,
916494250u, 1230085527u,
3807265751u, 3628174014u,
231181488u, 851743255u,
2988893883u, 1554380634u,
1142264800u, 3667013118u,
2638023604u, 2290487377u,
732137533u, 1909203251u,
1380301172u, 1498556724u,
4072067757u, 4165088768u,
3931792696u, 197618179u,
956300927u, 914413116u,
2148126371u, 1913303225u,
3074915312u, 3117299654u,
3178848746u, 1357272220u,
1438494951u, 507436733u,
3854939912u, 1413396341u,
126024219u, 146044391u,
3254014218u, 429095991u,
165589978u, 1578546616u,
623071693u, 366414107u,
249776086u, 1207522198u,
3120876698u, 1684583131u,
46987739u, 1157614300u,
199124911u, 520792961u,
3614377032u, 586863115u,
1716848157u, 4033596884u,
1164298657u, 4140791139u,
3824360466u, 3242407770u,
3725511003u, 232064808u,
2736953692u, 816692935u,
512845449u, 3748861010u,
4290630595u, 517646945u,
22638523u, 648000590u,
1283799121u, 3047062993u,
1024246061u, 4027776454u,
834785312u, 382936554u,
411505255u, 1973395102u,
580988377u, 2826990641u,
3474970689u, 1029055034u,
2584372201u, 1758123094u,
589567754u, 325737734u,
3886113119u, 3338548567u,
257578986u, 3698087965u,
3604937815u, 3198590202u,
2305332220u, 191910725u,
4244322689u, 542201663u,
3315355162u, 2135941665u,
1175961330u, 3948351189u,
23075771u, 3252374102u,
713127376u, 1467786451u,
663013031u, 3444053918u,
3077742128u, 1062268187u,
2115441882u, 4081398201u,
2335576331u, 2560479831u,
1379288194u, 4225182569u,
3958366652u, 3067277639u,
3667516477u, 1709989541u,
4188504038u, 59581167u,
2725013602u, 3639843023u,
3758739543u, 4189944477u,
2470483982u, 877580602u,
3252925478u, 2062343506u,
3981838403u, 3762572073u,
2931588131u, 3284356565u,
1129162571u, 732225574u,
1677744031u, 3532596884u,
3232041815u, 1652884780u,
3740979556u, 259034107u,
2227121257u, 1426140634u,
315836068u, 3200749877u,
1386256573u, 24035717u,
234531934u, 1115203611u,
1598686658u, 3146815575u,
2632963283u, 1778459926u,
739944537u, 579625482u,
1231665285u, 2457048126u,
3903349120u, 389846205u,
1052645068u, 862072556u,
2834153464u, 1481069623u,
1688445808u, 701920051u,
3740748788u, 3388062747u,
1192588249u, 1410111809u,
2633463887u, 4050419847u,
2513844237u, 2187968410u,
2951683019u, 3015806005u,
3000537321u, 479241367u,
252167538u, 1231057113u,
393624922u, 704325635u,
1467197045u, 2066433573u,
3082385053u, 735688735u,
956434529u, 4028590195u,
4074716319u, 813690332u,
2124740535u, 804073145u,
3748881891u, 3195309868u,
841856605u, 2585865274u,
881504822u, 3254795114u,
1241815736u, 970796142u,
497175391u, 3929484338u,
4264993211u, 1835322201u,
3675707838u, 4205965408u,
300298607u, 3858319990u,
3255259608u, 4247675634u,
1095823272u, 1197245408u,
1742785722u, 785893184u,
1702965674u, 850401405u,
4084891412u, 1160134629u,
2555998391u, 1972759056u,
710625654u, 4116162021u,
3352753742u, 85121177u,
3513255468u, 2487440590u,
2480032715u, 2287747045u,
4090178629u, 4044418876u,
1703944517u, 486290428u,
1515601363u, 2011102035u,
573985957u, 3536053779u,
4257172787u, 576405853u,
1523550693u, 1014952061u,
711098718u, 2425317635u,
3460807169u, 3688987163u,
3167371443u, 3062418115u,
3330028292u, 1713171303u,
526177822u, 2602636307u,
1245357025u, 3346699703u,
254529415u, 4017058800u,
1829738451u, 2164236533u,
1381258384u, 4036354071u,
1749181924u, 4118435443u,
4130543625u, 688472265u,
2731071299u, 2547657502u,
4175776103u, 338058159u,
3729582129u, 4181845558u,
2227290760u, 146827036u,
2459178427u, 1025353883u,
4284109679u, 2502815838u,
825124804u, 2533140036u,
616327404u, 2448966429u,
413992636u, 2334782461u,
2239052397u, 1082330589u,
3381164715u, 199381437u,
2583939798u, 2848283092u,
2300168091u, 2156336315u,
1855234968u, 1982110346u,
2482046810u, 3158163887u,
2168864636u, 133643215u,
3904021624u, 3646514568u,
1176127003u, 4015671361u,
100525019u, 3534706803u,
2045051700u, 3452457457u,
1492267772u, 2308393828u,
3776661467u, 3281002516u,
4246334524u, 743955039u,
685631442u, 1147951686u,
2040912376u, 2911148054u,
3204999386u, 2415262714u,
313209105u, 777065474u,
2729416454u, 1029284767u,
1632078298u, 1817552554u,
3963877000u, 1919171906u,
3843219958u, 3073580867u,
865146997u, 2473524405u,
2593817617u, 3643076308u,
617975720u, 3671562289u,
121812599u, 2902367378u,
2260041112u, 1019936943u,
320945955u, 2337845588u,
1535670711u, 773792826u,
3152195900u, 4090794518u,
4142587430u, 484732447u,
419191319u, 3377973345u,
324924679u, 2809286837u,
1562277603u, 1378362199u,
3791551981u, 1097806406u,
1386297408u, 2304900033u,
3574135531u, 4017075736u,
1161238398u, 1358056883u,
3487080616u, 1516736273u,
851615042u, 2927899494u,
4077452507u, 2984955003u,
3907754394u, 3578173844u,
1948409509u, 1923531348u,
3578472493u, 3710074193u,
213811117u, 2586632018u,
1922589216u, 274958014u,
1654276320u, 2687561076u,
2569061755u, 3122046057u,
3203802620u, 1692079268u,
477806878u, 140587742u,
520565830u, 3674576684u,
91246882u, 1010215946u,
3703994407u, 69201295u,
776213083u, 3677771507u,
3696902571u, 3593730713u,
2907901228u, 3239753796u,
1586241476u, 1939595371u,
2268396558u, 3468719670u,
2955715987u, 2295501078u,
2775848696u, 1358532390u,
3843660102u, 82177963u,
4094477877u, 191727221u,
278661677u, 2889101923u,
1352525614u, 2844977667u,
1261140657u, 1747052377u,
2334120653u, 645125282u,
2707230761u, 4142246789u,
1068639717u, 2288162940u,
1419293714u, 1636932722u,
3252686293u, 318543902u,
2598802768u, 2025886508u,
2250788464u, 2711763065u,
255108733u, 1845587644u,
3719270134u, 3940707863u,
917608574u, 1363253259u,
788659330u, 673256220u,
109793386u, 341851980u,
2698465479u, 3011229884u,
3886713057u, 1276595523u,
2439962760u, 2700515456u,
205970448u, 4198897105u,
875511891u, 371715572u,
1033680610u, 4278599955u,
3120038721u, 1256300069u,
225629455u, 3735275001u,
3961944123u, 1769389163u,
1074553219u, 668829411u,
1098679359u, 2573697509u,
1885071395u, 4233785523u,
2513878053u, 2030193788u,
360256231u, 107312677u,
310517502u, 2618936366u,
3600462351u, 1216645846u,
2970730323u, 4278812598u,
94638678u, 1689811113u,
4125738800u, 3103759730u,
103797041u, 1397772514u,
1669653333u, 572567964u,
1612872497u, 2986430557u,
214990655u, 3117607990u,
1949717207u, 2260498180u,
1493936866u, 3554860960u,
1582022990u, 1263709570u,
1244120487u, 3416600761u,
224580012u, 4252610345u,
286306391u, 814956796u,
1820532305u, 2776960536u,
3082703465u, 1659265982u,
1157398049u, 3752806924u,
3508246460u, 2902716664u,
2110942730u, 3267551635u,
902835431u, 405228165u,
2341378668u, 2220373824u,
3303626294u, 1175118221u,
383517064u, 896322512u,
1697257567u, 2202820683u,
1837689083u, 1336556841u,
914535232u, 3634083711u,
1537187340u, 3712582785u,
1088201893u, 3270984620u,
3093195926u, 2561488770u,
1962968100u, 236189500u,
2549435227u, 536047554u,
422609195u, 2958815818u,
4166184983u, 3528794619u,
1042329086u, 3914176886u,
1359641525u, 1197100813u,
1269739674u, 3301844628u,
1831223342u, 3329594980u,
2433669782u, 494908536u,
1441714797u, 1174785921u,
1933050423u, 958901065u,
868981704u, 2163330264u,
3243110680u, 1443133429u,
1145009669u, 2520062970u,
3851564853u, 2664619323u,
2686075657u, 4042710240u,
2125408249u, 4165697916u,
2328730865u, 3160666939u,
588683409u, 2126275847u,
829404209u, 1878067032u,
2567792910u, 897670516u,
934312076u, 2952135524u,
504832490u, 3312698056u,
4015478120u, 1265237690u,
3376133707u, 967674402u,
1553513184u, 834830418u,
2396504772u, 3278582098u,
2950762705u, 4277111759u,
4159211303u, 1290097509u,
251949572u, 3065234219u,
1832020534u, 312136369u,
1103404394u, 198182691u,
1369599600u, 3906710870u,
2954651680u, 1535115487u,
2389327507u, 1813520230u,
632704095u, 140762681u,
3123202913u, 3336005523u,
1287729497u, 2198985327u,
2470730783u, 3821758006u,
1009870118u, 559702706u,
4274686257u, 3187546567u,
2402308151u, 1096697687u,
678932329u, 3716363135u,
2899950405u, 3046872820u,
3754655641u, 2021741414u,
1993425202u, 2185339100u,
2838253700u, 3099212100u,
1679617763u, 3703603898u,
1135665833u, 3559875668u,
2503579743u, 1446869792u,
879818611u, 3788305533u,
2879018745u, 2719373510u,
3606051203u, 2166567748u,
343595772u, 1996164093u,
1577656121u, 475248376u,
463852893u, 2864244470u,
1332049663u, 3326459767u,
3207234525u, 2028708916u,
938916154u, 3115246264u,
3272166407u, 557660441u,
1265684026u, 245033807u,
2440657523u, 255451671u,
3811885130u, 1399880284u,
1322855877u, 3452203069u,
1324994449u, 3796404024u,
2002090272u, 1568745354u,
3700047753u, 31799506u,
3009412313u, 3184047862u,
728680761u, 3848624873u,
1849329144u, 3160134214u,
1272923193u, 1474278816u,
1208883495u, 1566527339u,
4136466541u, 630825649u,
1717327230u, 1496132623u,
2449386742u, 128106940u,
2108574735u, 2584236470u,
2872246579u, 397338552u,
3088905079u, 3456882941u,
1715915153u, 2940716269u,
4168438718u, 467441309u,
872996731u, 3206901319u,
1610606159u, 2540270567u,
1301658081u, 2379410194u,
2109315753u, 3348545480u,
2041927873u, 2644077493u,
546596661u, 1017047954u,
2596792972u, 2783958892u,
2826408201u, 3531646869u,
2219352672u, 4217451852u,
1806867885u, 1903578924u,
2076465705u, 2373061493u,
1832925325u, 241574049u,
1509517110u, 3703614272u,
3429894862u, 3529565564u,
4010000614u, 2256197939u,
517086873u, 2964595704u,
3501035294u, 4079457298u,
1184683823u, 4260564140u,
2339268412u, 3871564102u,
1572637805u, 383233885u,
3351411126u, 3419328182u,
2017406667u, 919677938u,
29804156u, 46276077u,
3032591014u, 4204155962u,
1172319502u, 969309871u,
2211319468u, 4153726847u,
3094193193u, 4240669441u,
3441709766u, 1387233546u,
4048882438u, 1217896566u,
1580964938u, 740563169u,
3691850348u, 3176426539u,
2738323042u, 2948665536u,
1474029445u, 3513354882u,
3219466255u, 3799363969u,
3961796122u, 1055550923u,
1992212097u, 2263421398u,
4289759174u, 2516844140u,
1782515131u, 2746577402u,
721928440u, 3529570984u,
1705302106u, 768287270u,
3474902815u, 4000011125u,
3475618043u, 212490675u,
549130471u, 2970128275u,
3170016833u, 2549835613u,
3691104824u, 2694324482u,
4169365948u, 3738062408u,
602930397u, 2148954730u,
2636387819u, 2616619070u,
301617872u, 374657036u,
3862686086u, 431292293u,
4225245165u, 1358580562u,
2377363130u, 1415970351u,
3885060756u, 1438379807u,
2297418515u, 2954777083u,
3970368221u, 1229801760u,
1931934525u, 2287507921u,
1713471510u, 2145608111u,
2650140034u, 4081586725u,
4196863572u, 1896558394u,
4059852729u, 1813855658u,
2618400836u, 1396056469u,
2375584220u, 1037031473u,
249284003u, 2450077637u,
1383747654u, 3122687303u,
2664431743u, 3855028730u,
929335420u, 3193251135u,
137313762u, 1850894384u,
3163711272u, 3071568023u,
418541677u, 3621223039u,
340274176u, 1167681812u,
4106647531u, 4022465625u,
3069708839u, 2704165015u,
2332023349u, 641449034u,
921552000u, 1712976649u,
1876484273u, 2343049860u,
1834682077u, 4155949943u,
2061821157u, 4240649383u,
747285578u, 1626463554u,
165503115u, 359629739u,
3838102563u, 582664250u,
3878924635u, 4117237498u,
2250573853u, 804336148u,
331393443u, 4242530387u,
3346357270u, 1674051445u,
3348019777u, 1722242971u,
2509017299u, 2966108111u,
4189102509u, 3323592310u,
2631381069u, 4014551783u,
4250787412u, 3448394212u,
2664752123u, 3517585534u,
3605365141u, 1669471183u,
2210121140u, 760762191u,
249697459u, 3416920106u,
16322182u, 643179562u,
1564226597u, 2134630675u,
1011990087u, 2990167340u,
2349550842u, 1642428946u,
1214854475u, 2134299399u,
2704221532u, 2104175211u,
4283196353u, 1342880802u,
198529755u, 2004468390u,
2544665755u, 853593042u,
2090611294u, 2970943872u,
1472073141u, 850464484u,
1407609278u, 3062461105u,
366448238u, 3842907484u,
488797416u, 1432670231u,
294963924u, 3693536939u,
3390549825u, 1583234720u,
4032223840u, 2318423400u,
2965642867u, 930822729u,
1679099863u, 1728968857u,
900822335u, 702309817u,
3258354115u, 1502282913u,
2811888503u, 3924947660u,
2477280726u, 3651607391u,
3788310204u, 1300369123u,
1842333726u, 4146839064u,
2468893861u, 4091095953u,
488595746u, 1448097974u,
1159634090u, 1738834113u,
2928916831u, 4093725287u,
530850094u, 291657799u,
3548184546u, 679517009u,
399175380u, 2658337143u,
3827951761u, 3086277222u,
2067718397u, 3632376023u,
3553313841u, 119173722u,
1702434637u, 1766260771u,
895654784u, 751439914u,
4008409498u, 215917713u,
1288382231u, 2656990891u,
2581779077u, 1570750352u,
2666411616u, 3533987737u,
4289478316u, 3576119563u,
3869794273u, 963183826u,
2081410737u, 3796810515u,
1036883117u, 136547246u,
875691100u, 2592925324u,
2689342539u, 427154472u,
532957601u, 1228758574u,
1908591042u, 1464255968u,
446980910u, 2984611177u,
3508927906u, 2001585786u,
2544767379u, 1525438381u,
879448844u, 1348536411u,
4242243590u, 2861338018u,
601175800u, 764077711u,
530635011u, 3785343245u,
2378297261u, 457568934u,
76438221u, 4104954272u,
2485968477u, 2381948487u,
4226929450u, 3148473363u,
879369091u, 2180270337u,
3674375989u, 1387729170u,
568650985u, 951677556u,
4213877384u, 2721005055u,
1678669911u, 66786703u,
2273631661u, 1149351924u,
246723096u, 1895026827u,
3810605772u, 3711056516u,
2080120290u, 3638638708u,
2915672708u, 2263003308u,
1976115991u, 3448840877u,
2019238520u, 225333538u,
1555273378u, 3797521928u,
1942347150u, 3262952567u,
2817830907u, 2078619498u,
749534111u, 1178073973u,
841092198u, 3288261538u,
1696412169u, 1496966875u,
3739946319u, 2481012988u,
568983526u, 114945840u,
2841706923u, 1632780103u,
4020169654u, 2087949619u,
833416317u, 3787017905u,
2373238993u, 2575395164u,
2542976862u, 2971726178u,
2880371864u, 3642087909u,
1043714217u, 3894199764u,
2235879182u, 203853421u,
834683330u, 425935223u,
3560796393u, 3565833278u,
3414330886u, 1748785729u,
1023171602u, 580966986u,
2657385925u, 2124704694u,
233442446u, 1107045577u,
3899097693u, 1067532701u,
115667924u, 1406028344u,
2419657149u, 18613994u,
2532882091u, 3476683808u,
895961699u, 3762914298u,
1328752423u, 1844996900u,
1210281744u, 904215228u,
4055325594u, 1118521573u,
3996647489u, 3657647605u,
325254059u, 3136157065u,
3341068436u, 2287683323u,
1313073005u, 126005630u,
853746559u, 3555092974u,
2689238752u, 49515858u,
61073168u, 1010661841u,
1269521335u, 1902040126u,
3858321250u, 1400735275u,
2974699176u, 2771676666u,
545726212u, 2225229957u,
1086473152u, 3454177594u,
2088002891u, 2883475137u,
3222194252u, 4144472319u,
567988835u, 1051332394u,
3932046135u, 542648229u,
162888005u, 1669710469u,
1492500905u, 553041029u,
3817492747u, 584127807u,
4147115982u, 2993670925u,
3509733475u, 3587959456u,
2088550465u, 1745399498u,
869648362u, 1404723176u,
3947542735u, 1334333531u,
59634866u, 3239516985u,
3844250972u, 1275954779u,
2512155003u, 1685649437u,
639306006u, 2524620206u,
576786501u, 655707039u,
2864351838u, 3736264674u,
1200907897u, 2384379464u,
15823708u, 206117476u,
1193310960u, 1093099415u,
3696538026u, 4112584792u,
2069527017u, 547588820u,
4178147211u, 2827259351u,
940846775u, 1054995047u,
2976960697u, 1934305529u,
2199137382u, 1005722394u,
1875867180u, 2064356511u,
4019734130u, 3096333006u,
2069509024u, 2906358341u,
2232866485u, 1456016086u,
1422674894u, 867282151u,
1612503136u, 1739843072u,
134947567u, 2978775774u,
1284167756u, 1090844589u,
831688783u, 2079216362u,
1626991196u, 3644714163u,
3678110059u, 898470030u,
3916646913u, 3182422972u,
3630426828u, 969847973u,
3427164640u, 3463937250u,
3044785046u, 897322257u,
3443872170u, 4185408854u,
2557463241u, 4080940424u,
2048168570u, 2429169982u,
3174690447u, 2513494106u,
1213061732u, 3143736628u,
3482268149u, 1250714337u,
31648125u, 3872383625u,
1565760579u, 36665130u,
751041229u, 2257179590u,
2915361862u, 280819225u,
2907818413u, 4254297769u,
3493178615u, 3755944354u,
4043533423u, 1134196225u,
4177134659u, 127246419u,
2442615581u, 923049607u,
1004426206u, 782768297u,
2410586681u, 1430106871u,
4103323427u, 3168399477u,
3716682375u, 3616334719u,
3413209549u, 656672786u,
2876965944u, 182894450u,
456581318u, 2683752067u,
3877875910u, 3190666241u,
3240336907u, 4024807233u,
1681224377u, 1576191191u,
3599250276u, 2381111980u,
3495321877u, 3956024585u,
1611608524u, 3815677453u,
2062334396u, 1656117707u,
5457134u, 3234118251u,
470187419u, 2688566989u,
3259870297u, 660100446u,
442236198u, 2542452448u,
493137955u, 392411099u,
947967568u, 1234595917u,
4230082284u, 2762976773u,
2870085764u, 1455086530u,
2762099647u, 4011882747u,
1215981925u, 3227517889u,
3269061963u, 4037515364u,
3168911474u, 4255057396u,
2026092260u, 1736192508u,
3909727042u, 3114708966u,
1938800693u, 680793595u,
1525265867u, 2808224480u,
2122290603u, 1211197714u,
3520488321u, 3979192396u,
3540779343u, 4192918639u,
2736030448u, 1120335563u,
1698949078u, 3993310631u,
1966048551u, 2228221363u,
597941119u, 3498018399u,
393987327u, 454500547u,
1222959566u, 567151340u,
3774764786u, 1492844524u,
3308300614u, 805568076u,
868414882u, 177406999u,
1608110313u, 642061169u,
1027515771u, 3131251981u,
2851936150u, 4272755262u,
1532845092u, 709643652u,
682573592u, 1244104217u,
796769556u, 2500467040u,
3002618826u, 1112998535u,
1780193104u, 1243644607u,
3691719535u, 2958853053u,
466635014u, 2277292580u,
4082276003u, 1030800045u,
1750863246u, 379050598u,
3576413281u, 731493104u,
132259176u, 4115195437u,
1769890695u, 2715470335u,
1819263183u, 2028531518u,
2154809766u, 3672399742u,
76727603u, 4198182186u,
2304993586u, 1666387627u,
284366017u, 3359785538u,
3469807328u, 2926494787u,
3829072836u, 2493478921u,
3738499303u, 3311304980u,
932916545u, 2235559063u,
2909742396u, 1765719309u,
1456588655u, 508290328u,
1490719640u, 3356513470u,
2908490783u, 251085588u,
830410677u, 3172220325u,
3897208579u, 1940535730u,
151909546u, 2384458112u,
};
// Return false only if offset is -1 and a spot check of 3 hashes all yield 0.
bool Test(int offset, int len = 0) {
#undef Check
#undef IsAlive
#define Check(x) do { \
const uint32_t actual = (x), e = expected[index++]; \
bool ok = actual == e; \
if (!ok) { \
cerr << "expected " << hex << e << " but got " << actual << endl; \
++errors; \
} \
assert(ok); \
} while (0)
#define IsAlive(x) do { alive += IsNonZero(x); } while (0)
// After the following line is where the uses of "Check" and such will go.
static int index = 0;
if (offset == -1) { int alive = 0; { uint64_t h = farmhashuo::Hash64WithSeed(data, len++, SEED); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashuo::Hash64(data, len++); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashuo::Hash64(data, len++); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } len -= 3; return alive > 0; }
{ uint64_t h = farmhashuo::Hash64WithSeed(data + offset, len, SEED); Check(h >> 32); Check((h << 32) >> 32); }
{ uint64_t h = farmhashuo::Hash64(data + offset, len); Check(h >> 32); Check((h << 32) >> 32); }
return true;
#undef Check
#undef IsAlive
}
int RunTest() {
Setup();
int i = 0;
cout << "Running farmhashuoTest";
if (!Test(-1)) {
cout << "... Unavailable\n";
return NoteErrors();
}
// Good. The function is attempting to hash, so run the full test.
int errors_prior_to_test = errors;
for ( ; i < kTestSize - 1; i++) {
Test(i * i, i);
}
for ( ; i < kDataSize; i += i / 7) {
Test(0, i);
}
Test(0, kDataSize);
cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n");
return NoteErrors();
}
#else
// After the following line is where the code to print hash codes will go.
void Dump(int offset, int len) {
{ uint64_t h = farmhashuo::Hash64WithSeed(data + offset, len, SEED); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; }
{ uint64_t h = farmhashuo::Hash64(data + offset, len); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; }
}
#endif
#undef SEED
#undef SEED1
#undef SEED0
} // namespace farmhashuoTest
#if TESTING
static int farmhashuoTestResult = farmhashuoTest::RunTest();
#else
int main(int argc, char** argv) {
Setup();
cout << "uint32_t expected[] = {\n";
int i = 0;
for ( ; i < kTestSize - 1; i++) {
farmhashuoTest::Dump(i * i, i);
}
for ( ; i < kDataSize; i += i / 7) {
farmhashuoTest::Dump(0, i);
}
farmhashuoTest::Dump(0, kDataSize);
cout << "};\n";
}
#endif
#ifndef FARMHASH_SELF_TEST_GUARD
#define FARMHASH_SELF_TEST_GUARD
#include <cstdio>
#include <iostream>
#include <string.h>
using std::cout;
using std::cerr;
using std::endl;
using std::hex;
static const uint64_t kSeed0 = 1234567;
static const uint64_t kSeed1 = k0;
static const int kDataSize = 1 << 20;
static const int kTestSize = 300;
#define kSeed128 Uint128(kSeed0, kSeed1)
static char data[kDataSize];
static int completed_self_tests = 0;
static int errors = 0;
// Initialize data to pseudorandom values.
void Setup() {
if (completed_self_tests == 0) {
uint64_t a = 9;
uint64_t b = 777;
for (int i = 0; i < kDataSize; i++) {
a += b;
b += a;
a = (a ^ (a >> 41)) * k0;
b = (b ^ (b >> 41)) * k0 + i;
uint8_t u = b >> 37;
memcpy(data + i, &u, 1); // uint8_t -> char
}
}
}
int NoteErrors() {
#define NUM_SELF_TESTS 9
if (++completed_self_tests == NUM_SELF_TESTS)
std::exit(errors > 0);
return errors;
}
template <typename T> inline bool IsNonZero(T x) {
return x != 0;
}
template <> inline bool IsNonZero<uint128_t>(uint128_t x) {
return x != Uint128(0, 0);
}
#endif // FARMHASH_SELF_TEST_GUARD
namespace farmhashxoTest {
uint32_t CreateSeed(int offset, int salt) {
uint32_t h = static_cast<uint32_t>(salt & 0xffffffff);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h += static_cast<uint32_t>(offset & 0xffffffff);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
h = h * c1;
h ^= (h >> 17);
return h;
}
#undef SEED
#undef SEED1
#undef SEED0
#define SEED CreateSeed(offset, -1)
#define SEED0 CreateSeed(offset, 0)
#define SEED1 CreateSeed(offset, 1)
#undef TESTING
#define TESTING 1
#if TESTING
uint32_t expected[] = {
1140953930u, 861465670u,
3277735313u, 2681724312u,
2598464059u, 797982799u,
890626835u, 800175912u,
2603993599u, 921001710u,
1410420968u, 2134990486u,
3283896453u, 1867689945u,
2914424215u, 2244477846u,
255297188u, 2992121793u,
1110588164u, 4186314283u,
161451183u, 3943596029u,
4019337850u, 452431531u,
283198166u, 2741341286u,
3379021470u, 2557197665u,
299850021u, 2532580744u,
452473466u, 1706958772u,
1298374911u, 3099673830u,
2199864459u, 3696623795u,
236935126u, 2976578695u,
4055299123u, 3281581178u,
1053458494u, 1882212500u,
2305012065u, 2169731866u,
3456121707u, 275903667u,
458884671u, 3033004529u,
3058973506u, 2379411653u,
1898235244u, 1402319660u,
2700149065u, 2699376854u,
147814787u, 720739346u,
2433714046u, 4222949502u,
4220361840u, 1712034059u,
3425469811u, 3690733394u,
4148372108u, 1330324210u,
594028478u, 2921867846u,
1635026870u, 192883107u,
780716741u, 1728752234u,
3280331829u, 326029180u,
3969463346u, 1436364519u,
393215742u, 3349570000u,
3824583307u, 1612122221u,
2859809759u, 3808705738u,
1379537552u, 1646032583u,
2233466664u, 1432476832u,
4023053163u, 2650381482u,
2052294713u, 3552092450u,
1628777059u, 1499109081u,
3476440786u, 3829307897u,
2960536756u, 1554038301u,
1145519619u, 3190844552u,
2902102606u, 3600725550u,
237495366u, 540224401u,
65721842u, 489963606u,
1448662590u, 397635823u,
1596489240u, 1562872448u,
1790705123u, 2128624475u,
180854224u, 2604346966u,
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760080239u, 2088061981u,
1580964938u, 740563169u,
422986366u, 330624974u,
4264507722u, 150928357u,
2738323042u, 2948665536u,
918718096u, 376390582u,
3966098971u, 717653678u,
3219466255u, 3799363969u,
3424344721u, 3187805406u,
375347278u, 3490350144u,
1992212097u, 2263421398u,
3855037968u, 1928519266u,
3866327955u, 1129127000u,
1782515131u, 2746577402u,
3059200728u, 2108753646u,
2738070963u, 1336849395u,
1705302106u, 768287270u,
1343511943u, 2247006571u,
1956142255u, 1780259453u,
3475618043u, 212490675u,
622521957u, 917121602u,
1852992332u, 1267987847u,
3170016833u, 2549835613u,
3299763344u, 2864033668u,
3378768767u, 1236609378u,
4169365948u, 3738062408u,
2661022773u, 2006922227u,
2760592161u, 3828932355u,
2636387819u, 2616619070u,
1237256330u, 3449066284u,
2871755260u, 3729280948u,
3862686086u, 431292293u,
3285899651u, 786322314u,
2531158535u, 724901242u,
2377363130u, 1415970351u,
1244759631u, 3263135197u,
965248856u, 174024139u,
2297418515u, 2954777083u,
987586766u, 3206261120u,
4059515114u, 3903854066u,
1931934525u, 2287507921u,
1827135136u, 1781944746u,
574617451u, 2299034788u,
2650140034u, 4081586725u,
2482286699u, 1109175923u,
458483596u, 618705848u,
4059852729u, 1813855658u,
4190721328u, 1129462471u,
4089998050u, 3575732749u,
2375584220u, 1037031473u,
1623777358u, 3389003793u,
546597541u, 352770237u,
1383747654u, 3122687303u,
1646071378u, 1164309901u,
290870767u, 830691298u,
929335420u, 3193251135u,
989577914u, 3626554867u,
591974737u, 3996958215u,
3163711272u, 3071568023u,
1516846461u, 3656006011u,
2698625268u, 2510865430u,
340274176u, 1167681812u,
3698796465u, 3155218919u,
4102288238u, 1673474350u,
3069708839u, 2704165015u,
1237411891u, 1854985978u,
3646837503u, 3625406022u,
921552000u, 1712976649u,
3939149151u, 878608872u,
3406359248u, 1068844551u,
1834682077u, 4155949943u,
2437686324u, 3163786257u,
2645117577u, 1988168803u,
747285578u, 1626463554u,
1235300371u, 1256485167u,
1914142538u, 4141546431u,
3838102563u, 582664250u,
1883344352u, 2083771672u,
2611657933u, 2139079047u,
2250573853u, 804336148u,
3066325351u, 2770847216u,
4275641370u, 1455750577u,
3346357270u, 1674051445u,
601221482u, 3992583643u,
1402445097u, 3622527604u,
2509017299u, 2966108111u,
2557027816u, 900741486u,
1790771021u, 2912643797u,
2631381069u, 4014551783u,
90375300u, 300318232u,
3269968032u, 2679371729u,
2664752123u, 3517585534u,
3253901179u, 542270815u,
1188641600u, 365479232u,
2210121140u, 760762191u,
1273768482u, 1216399252u,
3484324231u, 4287337666u,
16322182u, 643179562u,
325675502u, 3652676161u,
3120716054u, 3330259752u,
1011990087u, 2990167340u,
1097584090u, 3262252593u,
1829409951u, 3665087267u,
1214854475u, 2134299399u,
3704419305u, 411263051u,
1625446136u, 549838529u,
4283196353u, 1342880802u,
3460621305u, 1967599860u,
4282843369u, 1275671016u,
2544665755u, 853593042u,
901109753u, 2682611693u,
110631633u, 797487791u,
1472073141u, 850464484u,
797089608u, 3286110054u,
350397471u, 2775631060u,
366448238u, 3842907484u,
2219863904u, 3623364733u,
1850985302u, 4009616991u,
294963924u, 3693536939u,
3061255808u, 1615375832u,
1920066675u, 4113028420u,
4032223840u, 2318423400u,
2701956286u, 4145497671u,
3991532344u, 2536338351u,
1679099863u, 1728968857u,
449740816u, 2686506989u,
685242457u, 97590863u,
3258354115u, 1502282913u,
1235084019u, 2151665147u,
528459289u, 231097464u,
2477280726u, 3651607391u,
2091754612u, 1178454681u,
980597335u, 1604483865u,
1842333726u, 4146839064u,
3213794286u, 2601416506u,
754220096u, 3571436033u,
488595746u, 1448097974u,
4004834921u, 238887261u,
3320337489u, 1416989070u,
2928916831u, 4093725287u,
186020771u, 2367569534u,
3046087671u, 4090084518u,
3548184546u, 679517009u,
1962659444u, 3539886328u,
4192003933u, 1678423485u,
3827951761u, 3086277222u,
2144472852u, 1390394371u,
2976322029u, 1574517163u,
3553313841u, 119173722u,
1702434637u, 1766260771u,
3629581771u, 1407497759u,
895654784u, 751439914u,
4008409498u, 215917713u,
1482103833u, 695551833u,
1288382231u, 2656990891u,
2581779077u, 1570750352u,
3710689053u, 1741390464u,
2666411616u, 3533987737u,
4289478316u, 3576119563u,
4118694920u, 108199666u,
3869794273u, 963183826u,
2081410737u, 3796810515u,
791123882u, 2525792704u,
1036883117u, 136547246u,
875691100u, 2592925324u,
614302599u, 3013176417u,
2689342539u, 427154472u,
532957601u, 1228758574u,
1898117151u, 1181643858u,
1908591042u, 1464255968u,
446980910u, 2984611177u,
58509511u, 1046943619u,
3508927906u, 2001585786u,
2544767379u, 1525438381u,
552181222u, 1959725830u,
879448844u, 1348536411u,
4242243590u, 2861338018u,
1082052441u, 1034351453u,
601175800u, 764077711u,
530635011u, 3785343245u,
2178026726u, 117256687u,
2378297261u, 457568934u,
76438221u, 4104954272u,
956793873u, 3783168634u,
2485968477u, 2381948487u,
4226929450u, 3148473363u,
2518273601u, 3569490233u,
879369091u, 2180270337u,
3674375989u, 1387729170u,
977997984u, 4270646856u,
568650985u, 951677556u,
4213877384u, 2721005055u,
1073364549u, 2563403831u,
1678669911u, 66786703u,
2273631661u, 1149351924u,
3651298990u, 1581883443u,
246723096u, 1895026827u,
3810605772u, 3711056516u,
4058833288u, 2193790614u,
2080120290u, 3638638708u,
2915672708u, 2263003308u,
2361934197u, 4136767460u,
1976115991u, 3448840877u,
2019238520u, 225333538u,
874340815u, 2976159827u,
1555273378u, 3797521928u,
1942347150u, 3262952567u,
435997738u, 340403353u,
2817830907u, 2078619498u,
749534111u, 1178073973u,
894654712u, 3361226032u,
841092198u, 3288261538u,
1696412169u, 1496966875u,
697501571u, 1059158875u,
3739946319u, 2481012988u,
568983526u, 114945840u,
1559249010u, 2218244008u,
2841706923u, 1632780103u,
4020169654u, 2087949619u,
2438736103u, 24032648u,
833416317u, 3787017905u,
2373238993u, 2575395164u,
3434544481u, 3228481067u,
2542976862u, 2971726178u,
2880371864u, 3642087909u,
2407477975u, 2239080836u,
1043714217u, 3894199764u,
2235879182u, 203853421u,
2933669448u, 2504940536u,
834683330u, 425935223u,
3560796393u, 3565833278u,
1668000829u, 3683399154u,
3414330886u, 1748785729u,
1023171602u, 580966986u,
2531038985u, 3227325488u,
2657385925u, 2124704694u,
233442446u, 1107045577u,
3407293834u, 552770757u,
3899097693u, 1067532701u,
115667924u, 1406028344u,
1707768231u, 3724015962u,
2419657149u, 18613994u,
2532882091u, 3476683808u,
1560838678u, 811220224u,
895961699u, 3762914298u,
1328752423u, 1844996900u,
1420427894u, 1848067707u,
1210281744u, 904215228u,
4055325594u, 1118521573u,
2496554183u, 2579259919u,
3996647489u, 3657647605u,
325254059u, 3136157065u,
3951522674u, 4052925250u,
3341068436u, 2287683323u,
1313073005u, 126005630u,
2505120084u, 1194725057u,
853746559u, 3555092974u,
2689238752u, 49515858u,
1244776042u, 1069300695u,
61073168u, 1010661841u,
1269521335u, 1902040126u,
990632502u, 2378708922u,
3858321250u, 1400735275u,
2974699176u, 2771676666u,
170995186u, 2877798589u,
545726212u, 2225229957u,
1086473152u, 3454177594u,
3859483262u, 1499729584u,
2088002891u, 2883475137u,
3222194252u, 4144472319u,
2212229854u, 4146740722u,
567988835u, 1051332394u,
3932046135u, 542648229u,
3017852446u, 1277887997u,
162888005u, 1669710469u,
1492500905u, 553041029u,
1434876932u, 533989516u,
3817492747u, 584127807u,
4147115982u, 2993670925u,
4020312558u, 710021255u,
3509733475u, 3587959456u,
2088550465u, 1745399498u,
2952242967u, 1259815443u,
869648362u, 1404723176u,
3947542735u, 1334333531u,
3873471582u, 229399758u,
59634866u, 3239516985u,
3844250972u, 1275954779u,
1385684948u, 2243700741u,
2512155003u, 1685649437u,
639306006u, 2524620206u,
955360345u, 1646776457u,
576786501u, 655707039u,
2864351838u, 3736264674u,
655621239u, 362070173u,
1200907897u, 2384379464u,
15823708u, 206117476u,
3652870937u, 122927134u,
1193310960u, 1093099415u,
3696538026u, 4112584792u,
1834541277u, 845639252u,
2069527017u, 547588820u,
4178147211u, 2827259351u,
1764455305u, 3312003602u,
940846775u, 1054995047u,
2976960697u, 1934305529u,
3095615046u, 3354962706u,
2199137382u, 1005722394u,
1875867180u, 2064356511u,
3363633633u, 2688499147u,
4019734130u, 3096333006u,
2069509024u, 2906358341u,
3247463123u, 4191788132u,
2232866485u, 1456016086u,
1422674894u, 867282151u,
1851386407u, 1268304058u,
1612503136u, 1739843072u,
134947567u, 2978775774u,
2051592101u, 1017127033u,
1284167756u, 1090844589u,
831688783u, 2079216362u,
2079309682u, 1950585801u,
1626991196u, 3644714163u,
3678110059u, 898470030u,
1117570988u, 2517572125u,
3916646913u, 3182422972u,
3630426828u, 969847973u,
2835126238u, 53541366u,
3427164640u, 3463937250u,
3044785046u, 897322257u,
103038235u, 3804506837u,
3443872170u, 4185408854u,
2557463241u, 4080940424u,
3669923099u, 2789619871u,
2048168570u, 2429169982u,
3174690447u, 2513494106u,
3099587829u, 2627855577u,
1213061732u, 3143736628u,
3482268149u, 1250714337u,
3553412672u, 2689632914u,
31648125u, 3872383625u,
1565760579u, 36665130u,
1282106920u, 359361724u,
751041229u, 2257179590u,
2915361862u, 280819225u,
954406473u, 4101682199u,
2907818413u, 4254297769u,
3493178615u, 3755944354u,
3539557658u, 3330196096u,
4043533423u, 1134196225u,
4177134659u, 127246419u,
4213770762u, 1978302978u,
2442615581u, 923049607u,
1004426206u, 782768297u,
2702745496u, 1880389457u,
2410586681u, 1430106871u,
4103323427u, 3168399477u,
201787012u, 3105353527u,
3716682375u, 3616334719u,
3413209549u, 656672786u,
526032790u, 2895072131u,
2876965944u, 182894450u,
456581318u, 2683752067u,
1287916294u, 1270745752u,
3877875910u, 3190666241u,
3240336907u, 4024807233u,
4227999465u, 2389301430u,
1681224377u, 1576191191u,
3599250276u, 2381111980u,
3995044500u, 995595530u,
3495321877u, 3956024585u,
1611608524u, 3815677453u,
1520987487u, 3669102590u,
2062334396u, 1656117707u,
5457134u, 3234118251u,
4242065111u, 596879987u,
470187419u, 2688566989u,
3259870297u, 660100446u,
1042378442u, 2206034096u,
442236198u, 2542452448u,
493137955u, 392411099u,
3111186954u, 438250493u,
947967568u, 1234595917u,
4230082284u, 2762976773u,
421203727u, 3728409592u,
2870085764u, 1455086530u,
2762099647u, 4011882747u,
1785430706u, 3684427488u,
1215981925u, 3227517889u,
3269061963u, 4037515364u,
1749401388u, 2167451566u,
3168911474u, 4255057396u,
2026092260u, 1736192508u,
4123254745u, 2319366806u,
3909727042u, 3114708966u,
1938800693u, 680793595u,
3933041672u, 616863613u,
1525265867u, 2808224480u,
2122290603u, 1211197714u,
1186177814u, 2395325006u,
3520488321u, 3979192396u,
3540779343u, 4192918639u,
1763872074u, 3402419930u,
2736030448u, 1120335563u,
1698949078u, 3993310631u,
2947659998u, 1461045789u,
1966048551u, 2228221363u,
597941119u, 3498018399u,
1441110751u, 2229999711u,
393987327u, 454500547u,
1222959566u, 567151340u,
2496952483u, 1708770195u,
3774764786u, 1492844524u,
3308300614u, 805568076u,
4068812294u, 3404648243u,
868414882u, 177406999u,
1608110313u, 642061169u,
2093999089u, 222470301u,
1027515771u, 3131251981u,
2851936150u, 4272755262u,
2763002551u, 1881527822u,
1532845092u, 709643652u,
682573592u, 1244104217u,
440905170u, 1111321746u,
796769556u, 2500467040u,
3002618826u, 1112998535u,
1188525643u, 4212674512u,
1780193104u, 1243644607u,
3691719535u, 2958853053u,
2813437721u, 4036584207u,
466635014u, 2277292580u,
4082276003u, 1030800045u,
1899531424u, 609466946u,
1750863246u, 379050598u,
3576413281u, 731493104u,
2707384133u, 2289193651u,
132259176u, 4115195437u,
1769890695u, 2715470335u,
3348954692u, 2166575624u,
1819263183u, 2028531518u,
2154809766u, 3672399742u,
1142139448u, 88299682u,
76727603u, 4198182186u,
2304993586u, 1666387627u,
2488475423u, 3832777692u,
284366017u, 3359785538u,
3469807328u, 2926494787u,
1914195188u, 1134129972u,
3829072836u, 2493478921u,
3738499303u, 3311304980u,
726951526u, 911080963u,
932916545u, 2235559063u,
2909742396u, 1765719309u,
465269850u, 3803621553u,
1456588655u, 508290328u,
1490719640u, 3356513470u,
2262196163u, 1451774941u,
2908490783u, 251085588u,
830410677u, 3172220325u,
4039692645u, 1383603170u,
3897208579u, 1940535730u,
151909546u, 2384458112u,
};
// Return false only if offset is -1 and a spot check of 3 hashes all yield 0.
bool Test(int offset, int len = 0) {
#undef Check
#undef IsAlive
#define Check(x) do { \
const uint32_t actual = (x), e = expected[index++]; \
bool ok = actual == e; \
if (!ok) { \
cerr << "expected " << hex << e << " but got " << actual << endl; \
++errors; \
} \
assert(ok); \
} while (0)
#define IsAlive(x) do { alive += IsNonZero(x); } while (0)
// After the following line is where the uses of "Check" and such will go.
static int index = 0;
if (offset == -1) { int alive = 0; { uint64_t h = farmhashxo::Hash64WithSeeds(data, len++, SEED0, SEED1); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashxo::Hash64WithSeed(data, len++, SEED); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashxo::Hash64(data, len++); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } len -= 3; return alive > 0; }
{ uint64_t h = farmhashxo::Hash64WithSeeds(data + offset, len, SEED0, SEED1); Check(h >> 32); Check((h << 32) >> 32); }
{ uint64_t h = farmhashxo::Hash64WithSeed(data + offset, len, SEED); Check(h >> 32); Check((h << 32) >> 32); }
{ uint64_t h = farmhashxo::Hash64(data + offset, len); Check(h >> 32); Check((h << 32) >> 32); }
return true;
#undef Check
#undef IsAlive
}
int RunTest() {
Setup();
int i = 0;
cout << "Running farmhashxoTest";
if (!Test(-1)) {
cout << "... Unavailable\n";
return NoteErrors();
}
// Good. The function is attempting to hash, so run the full test.
int errors_prior_to_test = errors;
for ( ; i < kTestSize - 1; i++) {
Test(i * i, i);
}
for ( ; i < kDataSize; i += i / 7) {
Test(0, i);
}
Test(0, kDataSize);
cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n");
return NoteErrors();
}
#else
// After the following line is where the code to print hash codes will go.
void Dump(int offset, int len) {
{ uint64_t h = farmhashxo::Hash64WithSeeds(data + offset, len, SEED0, SEED1); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; }
{ uint64_t h = farmhashxo::Hash64WithSeed(data + offset, len, SEED); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; }
{ uint64_t h = farmhashxo::Hash64(data + offset, len); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; }
}
#endif
#undef SEED
#undef SEED1
#undef SEED0
} // namespace farmhashxoTest
#if TESTING
static int farmhashxoTestResult = farmhashxoTest::RunTest();
#else
int main(int argc, char** argv) {
Setup();
cout << "uint32_t expected[] = {\n";
int i = 0;
for ( ; i < kTestSize - 1; i++) {
farmhashxoTest::Dump(i * i, i);
}
for ( ; i < kDataSize; i += i / 7) {
farmhashxoTest::Dump(0, i);
}
farmhashxoTest::Dump(0, kDataSize);
cout << "};\n";
}
#endif
#endif // FARMHASHSELFTEST
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